update mobile menu

frontend/src/components/Navigation/Navigation.js

@@ -294,7 +294,7 @@ const Navigation = ({ onToggleTheme, mode }) => {
               </Box>
               <MenuItem
                 component={MuiLink}
-                href="https://huggingface.co/spaces/open-llm-leaderboard/comparator"
+                href="https://stacklok.com/"
                 target="_blank"
                 sx={{
                   "& svg": {
@@ -304,22 +304,7 @@ const Navigation = ({ onToggleTheme, mode }) => {
                   },
                 }}
               >
-                Compare models
-                <OpenInNewIcon />
-              </MenuItem>
-              <MenuItem
-                component={MuiLink}
-                href="https://huggingface.co/docs/leaderboards/open_llm_leaderboard/about"
-                target="_blank"
-                sx={{
-                  "& svg": {
-                    ml: "auto",
-                    fontSize: "0.875rem",
-                    opacity: 0.6,
-                  },
-                }}
-              >
-                About
+          About Stacklok
                 <OpenInNewIcon />
               </MenuItem>
             </Menu>