Refactor homepage and header components.

Moved header content logic based on `current_page` input for reusability. Updated styling and layout structure to improve maintainability and accommodate dynamic titles and subtitles.

frontend/src/app/home/home.component.html

@@ -1,17 +1,5 @@
 <ng-container>
-  <header id="top">
-    <app-header [title]="'Altitude'"></app-header>
-    <div class="title">
-      <h1 style="display: none;">Altitude Minecraft Server</h1>
-      <img id="headerimg" ngSrc="/public/img/logos/logo.png" alt="The Altitude Minecraft Server" height="319"
-           width="550">
-      <h2 style="font-size: 2.5em;" id="homeh2">Altitude now on {{ALTITUDE_VERSION}}!</h2>
-    </div>
-    <a id="scrollbutton" href="#scrollingpoint">
-      <span></span>
-      <p style="display: none;">Scroll Down</p>
-    </a>
-  </header>
+  <app-header [title]="'Altitude'" [current_page]="'home'"></app-header>
   <main>
     <section id="scrollingpoint" style="background: #202020; text-align: center; padding: 80px 0px;">
 <!--      TODO load player count from old api or backend?-->