fix: properly highlight search results with accents and diacritics (#661)

Refs: FossifyOrg/Contacts#12

Author: jguegel

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - Fixed overlap between the call screen avatar and the camera notch ([#645])
 - Fixed overlap between the call-on-hold banner and the status bar
+- Fixed search highlighting for characters with accents and diacritics
 
 ## [1.9.0] - 2025-11-03
 ### Added

app/src/main/kotlin/org/fossify/phone/adapters/ContactsAdapter.kt

@@ -391,8 +391,10 @@ class ContactsAdapter(
                 text = if (textToHighlight.isEmpty()) {
                     name
                 } else {
-                    if (name.contains(textToHighlight, true)) {
-                        name.highlightTextPart(textToHighlight, properPrimaryColor)
+                    val normalizedName = name.normalizeString()
+                    val normalizedSearchText = textToHighlight.normalizeString()
+                    if (normalizedName.contains(normalizedSearchText, true)) {
+                        name.highlightTextPart(normalizedSearchText, properPrimaryColor)
                     } else {
                         var spacedTextToHighlight = textToHighlight
                         val strippedName = name.filterNot { it.isWhitespace() }