feat: add routing for componentes-test and create reusable button component

- Implemented lazy loading for the componentes-test feature module.
- Created a redirect route to componentes-test as the default path.
- Added a new ReutilizablesTestPageComponent to showcase reusable components.
- Developed a reusable ButtonComponent with various styles and states.
- Updated global styles to include Bootstrap.
- Added SCSS styles for the new components and pages.

src/app/app.ts

@@ -1,4 +1,4 @@
-import { Component, signal } from '@angular/core';
+import { Component } from '@angular/core';
 import { RouterOutlet } from '@angular/router';
 
 @Component({
@@ -7,6 +7,4 @@ import { RouterOutlet } from '@angular/router';
   templateUrl: './app.html',
   styleUrl: './app.scss'
 })
-export class App {
-  protected readonly title = signal('shopit-front');
-}
+export class App {}