Remove unused css classes

src/interface/web/app/page.module.css

@@ -86,12 +86,6 @@ div.homeGreetings {
     grid-template-rows: 1fr 2fr;
 }
 
-div.sidePanel {
-    position: fixed;
-    height: 100%;
-    z-index: 1;
-}
-
 @media screen and (max-width: 768px) {
     div.chatBody {
         grid-template-columns: 0fr 1fr;
@@ -102,10 +96,6 @@ div.sidePanel {
         grid-template-rows: auto;
     }
 
-    div.sidePanel {
-        position: relative;
-    }
-
     div.chatBox {
         padding: 0;
         height: 100vh;