add virtual and override QF

libs/remix-ui/editor/src/lib/providers/codeActionProvider.ts

@@ -62,7 +62,7 @@ export class RemixCodeActionProvider implements monaco.languages.CodeActionProvi
               })
               break
             }
-            case 6: {
+            case 8: {
               // To add `abstract` in the contract
               const lineContent: string = model.getValueInRange(error)
               this.addQuickFix(actions, error, model.uri, {

libs/remix-ui/editor/src/lib/providers/quickfixes.ts

@@ -106,9 +106,25 @@ export default {
       nodeType: 'FunctionDefinition'
     }
   ],
-  'should be marked as abstract': [
+  'TypeError: Trying to override non-virtual function. Did you forget to add "virtual"':[
     {
       id: 6,
+      title: "Add 'virtual' to function",
+      message: 'virtual ',
+      nodeType: 'FunctionDefinition'
+    }
+  ],
+  'TypeError: Overriding function is missing "override" specifier':[
+    {
+      id: 7,
+      title: "Add 'override' to function",
+      message: 'override ',
+      nodeType: 'FunctionDefinition'
+    }
+  ],
+  'should be marked as abstract': [
+    {
+      id: 8,
       title: "Add 'abstract' to contract",
       message: 'abstract ',
       nodeType: 'ContractDefinition'