TF-2084 Change title for multi actions + add action hint, error text

(cherry picked from commit 4087e8225520239de9f9451f05a7486f244b2a1d)

lib/l10n/intl_messages.arb

@@ -1,5 +1,5 @@
 {
-  "@@last_modified": "2023-09-24T22:04:38.879050",
+  "@@last_modified": "2023-09-29T10:43:27.382543",
   "initializing_data": "Initializing data...",
   "@initializing_data": {
     "type": "text",
@@ -1848,7 +1848,7 @@
     "placeholders_order": [],
     "placeholders": {}
   },
-  "actionTitleRulesFilter": "Perform the following action:",
+  "actionTitleRulesFilter": "Perform the following actions:",
   "@actionTitleRulesFilter": {
     "type": "text",
     "placeholders_order": [],
@@ -3385,5 +3385,29 @@
     "type": "text",
     "placeholders_order": [],
     "placeholders": {}
+  },
+  "forwardEmailHintText": "Add forwarding address",
+  "@forwardEmailHintText": {
+    "type": "text",
+    "placeholders_order": [],
+    "placeholders": {}
+  },
+  "addAction": "Add action",
+  "@addAction": {
+    "type": "text",
+    "placeholders_order": [],
+    "placeholders": {}
+  },
+  "duplicatedActionError": "This action is already added",
+  "@duplicatedActionError": {
+    "type": "text",
+    "placeholders_order": [],
+    "placeholders": {}
+  },
+  "notSelectedMailboxToMoveMessage": "Please select a mailbox to move the message",
+  "@notSelectedMailboxToMoveMessage": {
+    "type": "text",
+    "placeholders_order": [],
+    "placeholders": {}
   }
 }

lib/main/localizations/app_localizations.dart

@@ -1891,7 +1891,7 @@ class AppLocalizations {
 
   String get actionTitleRulesFilter {
     return Intl.message(
-        'Perform the following action:',
+        'Perform the following actions:',
         name: 'actionTitleRulesFilter');
   }
 
@@ -3498,4 +3498,32 @@ class AppLocalizations {
       name: 'selectAction',
     );
   }
+
+  String get forwardEmailHintText {
+    return Intl.message(
+      'Add forwarding address',
+      name: 'forwardEmailHintText',
+    );
+  }
+
+  String get addAction {
+    return Intl.message(
+      'Add action',
+      name: 'addAction',
+    );
+  }
+
+  String get duplicatedActionError {
+    return Intl.message(
+      'This action is already added',
+      name: 'duplicatedActionError',
+    );
+  }
+
+  String get notSelectedMailboxToMoveMessage {
+    return Intl.message(
+      'Please select a mailbox to move the message',
+      name: 'notSelectedMailboxToMoveMessage',
+    );
+  }
 }