DRY pass #3: the "from the text" mark is one composable (#5373)

The label picker and the editor's tag row each wrote the same Text: the
label_from_tag string, labelSmall, onSurfaceVariant, 8dp start padding.
Chips.kt's FromTextMark() is now both.

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

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

@@ -9,8 +9,10 @@ import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
+import com.fabledsword.inkwell.R
 
 /** The corner of every chip on a card: tags, reminders, who shared it. */
 internal val CHIP_RADIUS = 6.dp
@@ -36,3 +38,14 @@ internal fun TintChip(
                 .padding(horizontal = 6.dp, vertical = 2.dp),
     )
 }
+
+/** Marks a tag the note's text carries, beside its name, wherever tags are listed. */
+@Composable
+internal fun FromTextMark() {
+    Text(
+        text = stringResource(R.string.label_from_tag),
+        style = MaterialTheme.typography.labelSmall,
+        color = MaterialTheme.colorScheme.onSurfaceVariant,
+        modifier = Modifier.padding(start = 8.dp),
+    )
+}

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

@@ -381,12 +381,7 @@ fun EditorLabelRow(
                             .padding(horizontal = 10.dp, vertical = 4.dp),
                 )
                 if (label.viaTag) {
-                    Text(
-                        text = stringResource(R.string.label_from_tag),
-                        style = MaterialTheme.typography.labelSmall,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                        modifier = Modifier.padding(start = 8.dp),
-                    )
+                    FromTextMark()
                 } else if (!readOnly) {
                     IconButton(onClick = {
                         // Only the MANUAL labels are sent: the core replaces

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

@@ -120,14 +120,7 @@ fun LabelSheet(
                         style = MaterialTheme.typography.bodyLarge,
                         modifier = Modifier.padding(start = 4.dp),
                     )
-                    if (fromTag) {
-                        Text(
-                            text = stringResource(R.string.label_from_tag),
-                            style = MaterialTheme.typography.labelSmall,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant,
-                            modifier = Modifier.padding(start = 8.dp),
-                        )
-                    }
+                    if (fromTag) FromTextMark()
                 }
             }
         }