TF-2134 Open composer from mailto uri

(cherry picked from commit 964013fb35ee6a7ab98f7d7c4a1146d87843dd81)

lib/features/composer/presentation/composer_controller.dart

@@ -470,6 +470,16 @@ class ComposerController extends BaseController {
           toAddressExpandMode.value = ExpandMode.COLLAPSE;
           _updateStatusEmailSendButton();
           break;
+        case EmailActionType.composeFromMailtoURL:
+          if (GetUtils.isEmail(arguments.uri ?? '')) {
+            listToEmailAddress.add(EmailAddress(null, arguments.uri));
+          } else {
+            listToEmailAddress.add(EmailAddress(null, 'invalid'));
+          }
+          isInitialRecipient.value = true;
+          toAddressExpandMode.value = ExpandMode.COLLAPSE;
+          _updateStatusEmailSendButton();
+          break;
         case EmailActionType.reply:
         case EmailActionType.replyAll:
           _initEmailAddress(

lib/features/composer/presentation/composer_view.dart

@@ -278,6 +278,7 @@ class ComposerView extends BaseComposerView {
       switch(argsComposer.emailActionType) {
         case EmailActionType.compose:
         case EmailActionType.composeFromEmailAddress:
+        case EmailActionType.composeFromMailtoURL:
         case EmailActionType.composeFromFileShared:
           return _buildHtmlEditor(
             context,

lib/features/composer/presentation/composer_view_web.dart

@@ -387,6 +387,7 @@ class ComposerView extends BaseComposerView {
       switch(argsComposer.emailActionType) {
         case EmailActionType.compose:
         case EmailActionType.composeFromEmailAddress:
+        case EmailActionType.composeFromMailtoURL:
         case EmailActionType.composeFromFileShared:
           return _buildHtmlEditor(
             context,