Refactor contact handling and other improvments (#317)

* Refactor contact filtering and improve localization strings; enhance path trace handling

* Add localization for new CLI commands and update existing strings

* Enhance contact handling and UI updates across multiple screens
add unfiltered contact access and improve last seen resolution

* Add polling interval configuration and improve contact handling

* Reorder command constants for better organization and clarity

* Refactor contact handling by removing unnecessary mapping and improving clarity across multiple screens

* Moved RadioStatsIconButton in chat screen for improved UI consistency

* Added indicators to AppBar for channels

* Ignore contacts with self public key in contact handling

* Simplify path removal logic and clean up unused imports in path management dialog

* Enhance path hop resolution by adding distance checks to improve candidate selection accuracy

* Remove unnecessary reset of radio stats poll reference count in polling interval setter

lib/l10n/app_ko.arb

@@ -2082,6 +2082,7 @@
   },
   "scanner_linuxPairingPinTitle": "블루투스 페어링 PIN",
   "scanner_linuxPairingHidePin": "PIN 숨기기",
+<<<<<<< HEAD
   "scanner_linuxPairingShowPin": "PIN 보기",
   "scanner_linuxPairingPinPrompt": "{deviceName}의 PIN을 입력하세요 (해당하는 경우에만 입력).",
   "@translation_translateTo": {
@@ -2101,4 +2102,4 @@
   "scanner_linuxPairingPinPrompt": "{deviceName}에 대한 PIN을 입력하세요 (없으면 비워두세요).",
   "repeater_cliQuickClockSync": "시계 동기화",
   "repeater_cliQuickDiscovery": "이웃 발견하기"
-}
+}