fix: resolve frontend lint errors in project groups perf

Replace for-of middleware loop with sequential reduce and remove extra blank line.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: skwowet

frontend/src/modules/lf/segments/store/actions.js

@@ -14,7 +14,6 @@ const isAdminOnly = () => {
   return roles.value.includes(LfRole.projectAdmin);
 };
 
-
 export default {
   // Project Groups
   listProjectGroups({

frontend/src/router/index.js

@@ -85,10 +85,10 @@ export const createRouter = () => {
           store,
         };
 
-        for (const middleware of middlewareArray) {
-          // eslint-disable-next-line no-await-in-loop
-          await middleware(context);
-        }
+        await middlewareArray.reduce(
+          (promise, middleware) => promise.then(() => middleware(context)),
+          Promise.resolve(),
+        );
 
         // Redirect to project group landing pages if routes that require a selected project group
         // And no project group is selected