Standardize coding style and formatting across the project

Updated codebase to follow consistent styling for spacing, braces, and indentation. Changes improve readability and align with standardized conventions throughout SCSS, TypeScript, and HTML files.

frontend/src/app/app.routes.ts

@@ -1,3 +1,3 @@
-import { Routes } from '@angular/router';
+import {Routes} from '@angular/router';
 
 export const routes: Routes = [];