refactor(devtools): drop @ from inputs and outputs label (angular#60053)

Drop '@' from inputs and outputs label to fit in with the new signal-based API.

PR Close angular#60053

Author: hawkgs

devtools/cypress/integration/view-component-metadata.e2e.js

@@ -44,13 +44,13 @@ describe('Viewing component metadata', () => {
     });
 
     it('should display correct set of inputs', () => {
-      cy.contains('.cy-inputs', '@Inputs');
+      cy.contains('.cy-inputs', 'Inputs');
       cy.contains('.cy-inputs mat-tree-node:first span:first', 'inputOne');
       cy.contains('.cy-inputs mat-tree-node:last span:first', 'inputTwo');
     });
 
     it('should display correct set of outputs', () => {
-      cy.contains('.cy-outputs', '@Outputs');
+      cy.contains('.cy-outputs', 'Outputs');
       cy.contains('.cy-outputs mat-tree-node:first span:first', 'outputOne');
       cy.contains('.cy-outputs mat-tree-node:last span:first', 'outputTwo');
     });

devtools/projects/ng-devtools/src/lib/devtools-tabs/directive-explorer/property-tab/property-view/property-view-body.component.ts

@@ -57,14 +57,14 @@ export class PropertyViewBodyComponent {
   >(() => {
     return [
       {
-        title: '@Inputs',
+        title: 'Inputs',
         hidden: this.directiveInputControls().dataSource.data.length === 0,
         controls: this.directiveInputControls(),
         documentation: 'https://angular.dev/api/core/input',
         class: 'cy-inputs',
       },
       {
-        title: '@Outputs',
+        title: 'Outputs',
         hidden: this.directiveOutputControls().dataSource.data.length === 0,
         controls: this.directiveOutputControls(),
         documentation: 'https://angular.dev/api/core/output',