feat(i18n): add Turkish translation and language picker entry

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B8ppceaR5s6cvMnm7uGRnf

app/src/main/java/com/m57/hermescontrol/ui/settings/components/LanguageSection.kt

@@ -32,6 +32,7 @@ internal fun supportedLanguages(): List<Pair<String, String>> =
     listOf(
         LocaleContextWrapper.SYSTEM_LANGUAGE to stringResource(R.string.language_system),
         "en" to stringResource(R.string.language_english),
+        "tr" to stringResource(R.string.language_turkish),
         "ar" to stringResource(R.string.language_arabic),
         "zh" to stringResource(R.string.language_chinese),
         "ko" to stringResource(R.string.language_korean),