Added voting page & header styling fix

Implemented VoteComponent to allow users to vote for the server on multiple platforms. Updated routes, styles, and headers for consistency.

frontend/src/index.html

@@ -23,10 +23,8 @@
   <style>
     header {
       height: 460px;
-      background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url("public/img/backgrounds/trees.jpg");
       background-size: cover;
-      background-position: center;
-      background-repeat: no-repeat;
+      background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)) url("public/img/backgrounds/trees.jpg") no-repeat center;
     }
   </style>
 </head>