feat: custom pwd of bak (#827)

lib/l10n/app_en.arb

@@ -11,8 +11,15 @@
   "autoConnect": "Auto connect",
   "autoRun": "Auto run",
   "autoUpdateHomeWidget": "Automatic home widget update",
-  "backupTip": "The exported data is weakly encrypted. \nPlease keep it safe.",
+  "backupTip": "The exported data can be encrypted with password. \nPlease keep it safe.",
   "backupVersionNotMatch": "Backup version is not match.",
+  "backupPassword": "Backup password",
+  "backupPasswordTip": "Set a password to encrypt backup files. Leave empty to disable encryption.",
+  "backupPasswordWrong": "Incorrect backup password",
+  "backupEncrypted": "Backup is encrypted",
+  "backupNotEncrypted": "Backup is not encrypted",
+  "backupPasswordSet": "Backup password set",
+  "backupPasswordRemoved": "Backup password removed",
   "battery": "Battery",
   "bgRun": "Run in background",
   "bgRunTip": "This switch only means the program will try to run in the background. Whether it can run in the background depends on whether the permission is enabled or not. For AOSP-based Android ROMs, please disable \"Battery Optimization\" in this app. For MIUI / HyperOS, please change the power saving policy to \"Unlimited\".",
@@ -137,7 +144,6 @@
   "pveIgnoreCertTip": "Not recommended to enable, beware of security risks! If you are using the default certificate from PVE, you need to enable this option.",
   "pveLoginFailed": "Login failed. Unable to authenticate with username/password from server configuration for Linux PAM login.",
   "pveVersionLow": "This feature is currently in the testing phase and has only been tested on PVE 8+. Please use it with caution.",
-  "pwd": "Password",
   "read": "Read",
   "reboot": "Reboot",
   "rememberPwdInMem": "Remember password in memory",