Deleted unused svgs, and reformat App.vue

Frontend/src/App.vue

@@ -4,16 +4,17 @@ import SidebarComponent from '@components/sidebar/SidebarComponent.vue';
 import {onMounted, provide, ref } from 'vue';
 
 
-onMounted( ()=> { switch( localStorage.theme ) {
+onMounted( ()=> { 
+  switch( localStorage.theme ) {
     case "dark":{
       document.documentElement.classList.add('dark');
       break;
     }
     case "light":{
       document.documentElement.classList.remove('dark');
-    }
-  } theme.value = localStorage.theme; }
-  )
+    }} 
+    theme.value = localStorage.theme; 
+})
 
   const theme = ref( getTheme() );
   provide('theme', theme );

Frontend/src/assets/dark_theme.svg

@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" style="width:24px;height:24px" viewBox="0 0 24 24">
-    <path fill="currentColor" d="M17.75,4.09L15.22,6.03L16.13,9.09L13.5,7.28L10.87,9.09L11.78,6.03L9.25,4.09L12.44,4L13.5,1L14.56,4L17.75,4.09M21.25,11L19.61,12.25L20.2,14.23L18.5,13.06L16.8,14.23L17.39,12.25L15.75,11L17.81,10.95L18.5,9L19.19,10.95L21.25,11M18.97,15.95C19.8,15.87 20.69,17.05 20.16,17.8C19.84,18.25 19.5,18.67 19.08,19.07C15.17,23 8.84,23 4.94,19.07C1.03,15.17 1.03,8.83 4.94,4.93C5.34,4.53 5.76,4.17 6.21,3.85C6.96,3.32 8.14,4.21 8.06,5.04C7.79,7.9 8.75,10.87 10.95,13.06C13.14,15.26 16.1,16.22 18.97,15.95M17.33,17.97C14.5,17.81 11.7,16.64 9.53,14.5C7.36,12.31 6.2,9.5 6.04,6.68C3.23,9.82 3.34,14.64 6.35,17.66C9.37,20.67 14.19,20.78 17.33,17.97Z" />
-</svg>

Frontend/src/assets/light_theme.svg

@@ -1,5 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" class="icon icon-tabler icon-tabler-sun" width="24" height="24" viewBox="0 0 24 24" stroke-width="2" stroke="currentColor" fill="none" stroke-linecap="round" stroke-linejoin="round">
-    <path stroke="none" d="M0 0h24v24H0z" fill="none"></path>
-    <circle cx="12" cy="12" r="4"></circle>
-    <path d="M3 12h1m8 -9v1m8 8h1m-9 8v1m-6.4 -15.4l.7 .7m12.1 -.7l-.7 .7m0 11.4l.7 .7m-12.1 -.7l-.7 .7"></path>
-</svg>