Rename package to mattitja/laravel-plausible-proxy

- Rename Composer package to mattitja/laravel-plausible-proxy and
  namespace to Mattitja\LaravelPlausibleProxy
- Point homepage and links to git.mattitja.se
- Forward only User-Agent and visitor IP (X-Forwarded-For) to Plausible
  instead of all request headers
- Forward all event fields and return Plausible's upstream response
- Accept props as array or JSON string
- Drop Laravel 10, upgrade Larastan to 3 and PHPStan plugins to 2
- Remove broken facade alias and dead autoload paths
- Clean up README, issue template and remove invalid FUNDING.yml

tests/TestCase.php

@@ -1,22 +1,12 @@
 <?php
 
-namespace MattitjaAB\LaravelPlausibleProxy\Tests;
+namespace Mattitja\LaravelPlausibleProxy\Tests;
 
-use Illuminate\Database\Eloquent\Factories\Factory;
-use MattitjaAB\LaravelPlausibleProxy\LaravelPlausibleProxyServiceProvider;
+use Mattitja\LaravelPlausibleProxy\LaravelPlausibleProxyServiceProvider;
 use Orchestra\Testbench\TestCase as Orchestra;
 
 class TestCase extends Orchestra
 {
-    protected function setUp(): void
-    {
-        parent::setUp();
-
-        Factory::guessFactoryNamesUsing(
-            fn (string $modelName) => 'MattitjaAB\\LaravelPlausibleProxy\\Database\\Factories\\'.class_basename($modelName).'Factory'
-        );
-    }
-
     protected function getPackageProviders($app)
     {
         return [