fix: move elements from ui folder (#247)

Author: lukonik

projects/docs/src/app/app.component.ts

@@ -1,7 +1,7 @@
 import { Component, inject } from '@angular/core';
 import { RouterOutlet } from '@angular/router';
-import { IconRegistry } from '@/ui/icon/icon.registry';
 import { HeaderComponent } from './features/header/header.component';
+import { IconRegistry } from '@/ui/icon/icon.registry';
 
 @Component({
   selector: 'doc-root',