Feat: Add responsive workspace shell

Frontend/src/components/shell/LeftRail/LeftRail.tsx

@@ -1,7 +1,6 @@
 // Path: Frontend/src/components/shell/LeftRail/LeftRail.tsx
 
 import { For, Show, type JSX } from "solid-js";
-import { Plus } from "../../../lib/icons";
 import { railItems, type RailItem } from "../data/shell.data";
 import styles from "./LeftRail.module.scss";
 
@@ -77,14 +76,6 @@ export const LeftRail = (props: LeftRailProps): JSX.Element => {
 					</For>
 				</div>
 			</Show>
-
-			<Show when={!props.collapsed}>
-				<div class={styles.bottomCluster}>
-					<button type="button" class={styles.addButton} aria-label="Create server" title="Create server">
-						<Plus size={16} strokeWidth={2} />
-					</button>
-				</div>
-			</Show>
 		</aside>
 	);
 };