chore(l10n): update Chinese (Traditional Han script) translations

Currently translated at 100.0% (111 of 111 strings)

Translation: Fossify/Messages
Translate-URL: https://hosted.weblate.org/projects/fossify/sms-messenger/zh_Hant/
Via: Weblate

Author: s8321414

app/src/main/res/values-zh-rTW/strings.xml

@@ -116,4 +116,5 @@
     <string name="keywords">關鍵字</string>
     <string name="export_blocked_keywords">匯出被封鎖的關鍵字</string>
     <string name="import_blocked_keywords">匯入被封鎖的關鍵字</string>
-</resources>
+    <string name="keep_conversations_archived">保留對話封存</string>
+</resources>