Added statistics

- Added total file size statistic
- Added total uploads statistic
- Added total downloads statistic
- Added icons to btns

frontend/src/app/login/login.component.html

@@ -8,7 +8,7 @@
         </label>
         <input class="input w-full shadow text-center" id="username" type="text" placeholder="Username"
                [(ngModel)]="inputUsername" name="username"
-               [ngClass]="{'input-error': loginFailed}">
+               [ngClass]="{'input-error': loginFailed}" autofocus >
       </div>
       <div class="mb-5">
         <label class="block text-gray-700 text-sm font-bold mb-2 text-center" for="password">