Simple landing page and moved css to the app.css

assets/package-lock.json

@@ -5,6 +5,7 @@
   "packages": {
     "": {
       "dependencies": {
+        "@tanstack/react-query": "^5.0.0",
         "phoenix": "file:../deps/phoenix",
         "phoenix_html": "file:../deps/phoenix_html",
         "phoenix_live_view": "file:../deps/phoenix_live_view",
@@ -69,6 +70,32 @@
         "typescript-eslint": "^8.34.0"
       }
     },
+    "node_modules/@tanstack/query-core": {
+      "version": "5.95.2",
+      "resolved": "https://registry.npmjs.org/@tanstack/query-core/-/query-core-5.95.2.tgz",
+      "integrity": "sha512-o4T8vZHZET4Bib3jZ/tCW9/7080urD4c+0/AUaYVpIqOsr7y0reBc1oX3ttNaSW5mYyvZHctiQ/UOP2PfdmFEQ==",
+      "license": "MIT",
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      }
+    },
+    "node_modules/@tanstack/react-query": {
+      "version": "5.95.2",
+      "resolved": "https://registry.npmjs.org/@tanstack/react-query/-/react-query-5.95.2.tgz",
+      "integrity": "sha512-/wGkvLj/st5Ud1Q76KF1uFxScV7WeqN1slQx5280ycwAyYkIPGaRZAEgHxe3bjirSd5Zpwkj6zNcR4cqYni/ZA==",
+      "license": "MIT",
+      "dependencies": {
+        "@tanstack/query-core": "5.95.2"
+      },
+      "funding": {
+        "type": "github",
+        "url": "https://github.com/sponsors/tannerlinsley"
+      },
+      "peerDependencies": {
+        "react": "^18 || ^19"
+      }
+    },
     "node_modules/@types/react": {
       "version": "19.2.14",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.14.tgz",