fix(locale): ensure correct locale selection in settings dropdown

Fixes an issue where the locale dropdown would incorrectly display the first alphabetical locale (e.g., "Afrikaans" for English) instead of the actual default locale (e.g., "English"). This happened when a user first installs the plugin or didn't set locale directly before.

Author: Canario5

src/main/kotlin/com/github/blarc/ai/commits/intellij/plugin/settings/AppSettingsConfigurable.kt

@@ -100,7 +100,10 @@ class AppSettingsConfigurable(val project: Project, cs: CoroutineScope) : BoundC
 
             comboBox(locales, AICommitsListCellRenderer())
                 .widthGroup("input")
-                .bindItem(getter = { projectSettings.locale }, setter = { setActiveLocale(it)} )
+                .bindItem(
+                    getter = { locales.find { it.language == projectSettings.locale.language } ?: Locale.ENGLISH },
+                    setter = { setActiveLocale(it)}
+                )
 
             contextHelp(message("settings.locale.contextHelp"))