Rebrand from "Fuel Price" to "Fuel Alert" and update project metadata

- Rename project in package.json, composer.json, and .env.example
- Update app name, URLs, and session domains to fuel-alert
- Comment out testimonials section in Home.vue
- Revise footer copy: remove "

composer.json

@@ -1,9 +1,9 @@
 {
     "$schema": "https://getcomposer.org/schema.json",
-    "name": "laravel/livewire-starter-kit",
+    "name": "fuel-alert/fuel-alert",
     "type": "project",
-    "description": "The official Laravel starter kit for Livewire.",
-    "keywords": ["laravel", "framework"],
+    "description": "Fuel Alert — UK fuel price intelligence app.",
+    "keywords": ["laravel", "fuel", "alerts"],
     "license": "MIT",
     "require": {
         "php": "^8.4",