Added a feature to save logs to local storage (#1741)

- Added export logs to local storage
[1664](https://github.com/tiann/KernelSU/issues/1664)

---------

Co-authored-by: weishu <twsxtd@gmail.com>

manager/app/src/main/res/values-et/strings.xml

@@ -108,4 +108,5 @@
     <string name="settings_check_update_summary">Rakenduse avamisel kontrolli automaatselt uuendusi</string>
     <string name="open">Ava</string>
     <string name="enable_web_debugging">Luba WebView silumine</string>
+    <string name="save_log">Salvesta Logid</string>
 </resources>