TF-3515 Add save email as template feature

lib/features/thread/presentation/mixin/email_action_controller.dart

@@ -43,9 +43,15 @@ mixin EmailActionController {
     mailboxDashBoardController.openComposer(ComposerArguments.editDraftEmail(presentationEmail));
   }
 
-  void editAsNewEmail(PresentationEmail presentationEmail) {
+  void editAsNewEmail(
+    PresentationEmail presentationEmail, {
+    EmailId? savedEmailTemplateId,
+  }) {
     mailboxDashBoardController.openComposer(
-      ComposerArguments.editAsNewEmail(presentationEmail),
+      ComposerArguments.editAsNewEmail(
+        presentationEmail,
+        savedEmailTemplateId: savedEmailTemplateId,
+      ),
     );
   }
 

lib/features/thread/presentation/thread_controller.dart

@@ -1176,7 +1176,7 @@ class ThreadController extends BaseController with EmailActionController {
         if (mailboxContain?.isDrafts == true) {
           editDraftEmail(selectedEmail);
         } else if (mailboxContain?.isTemplates == true) {
-          editAsNewEmail(selectedEmail);
+          editAsNewEmail(selectedEmail, savedEmailTemplateId: selectedEmail.id);
         } else {
           previewEmail(selectedEmail);
         }

lib/features/thread/presentation/thread_view.dart

@@ -724,7 +724,7 @@ class ThreadView extends GetWidget<ThreadController>
         _markAsEmailSpamOrUnSpamContextMenuItemAction(context, email, mailboxContain),
       if (mailboxContain?.isArchive == false)
         _archiveMessageContextMenuItemAction(context, email),
-      if (mailboxContain?.isDrafts == false)
+      if (mailboxContain?.isDrafts == false && mailboxContain?.isTemplates == false)
         _editAsNewEmailContextMenuItemAction(context, email),
     ];
   }
@@ -846,7 +846,7 @@ class ThreadView extends GetWidget<ThreadController>
         _buildMarkAsSpamPopupMenuItem(context, email, mailboxContain),
       if (mailboxContain?.isArchive == false)
         _buildArchiveMessagePopupMenuItem(context, email),
-      if (mailboxContain?.isDrafts == false)
+      if (mailboxContain?.isDrafts == false && mailboxContain?.isTemplates == false)
         _buildEditAsNewEmailPopupMenuItem(AppLocalizations.of(context), email),
     ];
   }