DRY pass #2, batch 6, F19: Sheet, the bottom sheet with its title (#5372)

EditorPickers.kt Sheet(title, onDismiss, modifier, verticalArrangement):
a ModalBottomSheet holding a full-width column with the screen margin,
clear of the navigation bar, under SheetTitle. The filter, tag picker,
reminder and share sheets each built that. A site's extra (a scroll, ime
padding, bottom space) is now applied after the navigation-bar inset
rather than before it. The total inset is the same either way.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

android/app/src/main/java/com/fabledsword/inkwell/ui/BoardFilters.kt

@@ -1,19 +1,16 @@
 package com.fabledsword.inkwell.ui
 
 import androidx.compose.foundation.layout.Arrangement
-import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.ExperimentalLayoutApi
 import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.FilterChip
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
@@ -115,17 +112,11 @@ internal fun FilterSheet(
     onChange: (BoardFilters) -> Unit,
     onDismiss: () -> Unit,
 ) {
-    ModalBottomSheet(onDismissRequest = onDismiss) {
-        Column(
-            modifier =
-                Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 16.dp)
-                    .navigationBarsPadding()
-                    .verticalScroll(rememberScrollState()),
+    Sheet(
+        title = R.string.filters,
+        onDismiss = onDismiss,
+        modifier = Modifier.verticalScroll(rememberScrollState()),
     ) {
-            SheetTitle(R.string.filters)
-
         FilterHeading(R.string.filters_show)
         FlowRow(horizontalArrangement = Arrangement.spacedBy(6.dp)) {
             FilterChip(
@@ -165,7 +156,6 @@ internal fun FilterSheet(
         }
     }
 }
-}
 
 @Composable
 private fun FilterHeading(labelRes: Int) {

android/app/src/main/java/com/fabledsword/inkwell/ui/EditorPickers.kt

@@ -1,8 +1,10 @@
 package com.fabledsword.inkwell.ui
 
+import androidx.annotation.StringRes
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.heightIn
@@ -85,17 +87,11 @@ fun LabelSheet(
             .map { it.id }
             .toSet()
 
-    ModalBottomSheet(onDismissRequest = onDismiss) {
-        Column(
-            modifier =
-                Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 16.dp)
-                    .imePadding()
-                    .navigationBarsPadding(),
+    Sheet(
+        title = R.string.label_picker_title,
+        onDismiss = onDismiss,
+        modifier = Modifier.imePadding(),
     ) {
-            SheetTitle(R.string.label_picker_title)
-
         PlainTextField(
             value = typed,
             onValueChange = { typed = it },
@@ -150,7 +146,6 @@ fun LabelSheet(
         }
     }
 }
-}
 
 /**
  * When to be reminded.
@@ -170,16 +165,10 @@ fun ReminderSheet(
 ) {
     var exact by remember { mutableStateOf(false) }
 
-    ModalBottomSheet(onDismissRequest = onDismiss) {
-        Column(
-            modifier =
-                Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 16.dp)
-                    .navigationBarsPadding(),
+    Sheet(
+        title = R.string.reminder_title,
+        onDismiss = onDismiss,
     ) {
-            SheetTitle(R.string.reminder_title)
-
         reminderPresets().forEach { (labelRes, at) ->
             Text(
                 text = "${stringResource(labelRes)} · ${formatInstant(rfc3339(at))}",
@@ -225,7 +214,6 @@ fun ReminderSheet(
             )
         }
     }
-    }
 
     if (exact) {
         ExactReminderPicker(
@@ -337,6 +325,36 @@ private fun RecurrenceChips(
     }
 }
 
+/**
+ * A bottom sheet with its title: full width, the screen's side margin, and clear of
+ * the navigation bar. [modifier] adds to that, after the inset (ime padding, a
+ * scroll, extra space at the bottom).
+ */
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun Sheet(
+    @StringRes title: Int,
+    onDismiss: () -> Unit,
+    modifier: Modifier = Modifier,
+    verticalArrangement: Arrangement.Vertical = Arrangement.Top,
+    content: @Composable ColumnScope.() -> Unit,
+) {
+    ModalBottomSheet(onDismissRequest = onDismiss) {
+        Column(
+            modifier =
+                Modifier
+                    .fillMaxWidth()
+                    .padding(horizontal = 16.dp)
+                    .navigationBarsPadding()
+                    .then(modifier),
+            verticalArrangement = verticalArrangement,
+        ) {
+            SheetTitle(title)
+            content()
+        }
+    }
+}
+
 @Composable
 internal fun SheetTitle(labelRes: Int) {
     Text(

android/app/src/main/java/com/fabledsword/inkwell/ui/ShareSheet.kt

@@ -7,7 +7,6 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.heightIn
-import androidx.compose.foundation.layout.navigationBarsPadding
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
@@ -18,7 +17,6 @@ import androidx.compose.material3.FilterChip
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.RadioButton
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -75,17 +73,12 @@ fun ShareSheet(
     onUnshare: (shareId: String) -> Unit,
     onDismiss: () -> Unit,
 ) {
-    ModalBottomSheet(onDismissRequest = onDismiss) {
-        Column(
-            modifier =
-                Modifier
-                    .fillMaxWidth()
-                    .padding(horizontal = 16.dp)
-                    .padding(bottom = 16.dp)
-                    .navigationBarsPadding(),
+    Sheet(
+        title = R.string.share_title,
+        onDismiss = onDismiss,
+        modifier = Modifier.padding(bottom = 16.dp),
         verticalArrangement = Arrangement.spacedBy(8.dp),
     ) {
-            SheetTitle(R.string.share_title)
         when {
             state.loading -> Muted(stringResource(R.string.share_loading))
             state.needsServer -> Muted(stringResource(R.string.share_needs_server))
@@ -94,7 +87,6 @@ fun ShareSheet(
         }
     }
 }
-}
 
 @Composable
 private fun ShareBody(