style: Removes extra spaces (#6558)

Co-authored-by: dwelle <luzar.david@gmail.com>

dev-docs/docs/@excalidraw/excalidraw/api/children-components/footer.mdx

@@ -16,7 +16,6 @@ function App() {
             className="custom-footer"
             onClick={() => alert("This is dummy footer")}
           >
-            {" "}
             custom footer
           </button>
         </Footer>

dev-docs/docs/@excalidraw/excalidraw/api/children-components/main-menu.mdx

@@ -14,8 +14,7 @@ function App() {
             Item1
           </MainMenu.Item>
           <MainMenu.Item onSelect={() => window.alert("Item2")}>
-            {" "}
-            Item 2{" "}
+            Item 2
           </MainMenu.Item>
         </MainMenu>
       </Excalidraw>
@@ -93,7 +92,6 @@ function App() {
               style={{ height: "2rem" }}
               onClick={() => window.alert("custom menu item")}
             >
-              {" "}
               custom item
             </button>
           </MainMenu.ItemCustom>