feat(core): add copyright

src/app/app.html

@@ -1,3 +1,12 @@
-<app-background/>
-<app-navigation-bar/>
-<router-outlet/>
+<div class="flex flex-col min-h-screen">
+  <app-background/>
+  <app-navigation-bar/>
+
+  <main class="flex-1">
+    <router-outlet></router-outlet>
+  </main>
+
+  <p class="text-gray text-center p-5">
+    {{ 'common.copyright' | translate }}
+  </p>
+</div>

src/app/app.ts

@@ -3,10 +3,11 @@ import { RouterOutlet } from '@angular/router';
 import { ThemeSwitchService } from './core/service/theme-switch.service';
 import { Background } from "./core/components/background/background";
 import { NavigationBar } from "./core/components/navigation-bar/navigation-bar";
+import { TranslatePipe } from '@ngx-translate/core';
 
 @Component({
   selector: 'app-root',
-  imports: [RouterOutlet, Background, NavigationBar],
+  imports: [RouterOutlet, Background, NavigationBar, TranslatePipe],
   templateUrl: './app.html',
 })
 export class App {

src/app/pages/home/home.scss

@@ -4,7 +4,3 @@ main {
         mask-image: linear-gradient(to bottom, rgba(0,0,0,1) 60%, rgba(0,0,0,0) 100%);
     }
 }
-
-.text-gray {
-    color: rgb(from var(--content-color) r g b / 0.7);
-}