Remove html support, we don't support that

[MAILPOET-2614]

assets/js/src/form_editor/blocks/heading/heading.jsx

@@ -14,6 +14,10 @@ const settings = {
   ...heading.settings,
   ...settingsReset,
   category: 'layout',
+  supports: {
+    ...heading.supports,
+    html: false,
+  },
 };
 
 export { settings };

assets/js/src/form_editor/blocks/paragraph/paragraph.tsx

@@ -13,6 +13,10 @@ const settings = {
   ...paragraph.settings,
   ...settingsReset,
   category: 'layout',
+  supports: {
+    ...paragraph.supports,
+    html: false,
+  },
 };
 
 export { settings };