Android: loneUrl trims without a spread

detekt's SpreadOperator flagged trimEnd(*TRAILING_PUNCTUATION) from
1c4bf56. trimEnd { it in TRAILING_PUNCTUATION } trims the same characters
without copying the array. Checked with detekt in the CI image.

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

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

@@ -57,7 +57,7 @@ fun loneUrl(body: String): String? =
         .matchEntire(body)
         ?.groupValues
         ?.get(1)
-        ?.trimEnd(*TRAILING_PUNCTUATION)
+        ?.trimEnd { it in TRAILING_PUNCTUATION }
         ?.ifEmpty { null }
 
 /**