docs(angular): refactor

docs/en/UI/Angular/Custom-Setting-Page.md

@@ -11,12 +11,11 @@ import { Component } from '@angular/core';
 @Component({
   selector: 'app-your-custom-settings',
   template: `
-    your-custom-settings works! mySetting: {%{{{ mySetting$ | async }}}%}
+    custom-settings works! 
   `,
 })
 export class YourCustomSettingsComponent {
-  @Select(ConfigState.getSetting('MyProjectName.MySetting1')) // Gets a setting. MyProjectName.MySetting1 is a setting key.
-  mySetting$: Observable<string>; // The selected setting is set to the mySetting variable as Observable.
+  // Your component logic
 }
 ```