refactor: update app.vue and various components to improve routing paths, enhance UI consistency, and streamline layout for better user experience

components/CoopBuilderSubnav.vue

@@ -30,17 +30,17 @@ const coopBuilderItems = [
   {
     id: "coop-builder",
     name: "Settings",
-    path: "/coop-builder",
+    path: "/tools/coop-builder",
   },
   {
     id: "budget",
     name: "Studio Budget",
-    path: "/budget",
+    path: "/tools/budget",
   },
   {
     id: "project-budget",
     name: "Project Budget",
-    path: "/project-budget",
+    path: "/tools/project-budget",
   },
 ];