✨ Add storage configuration, localization updates, and feed generation

- Added `publicDisk` configuration to `filesystems.php`.
- Expanded locale translations in `es.json` and `de.json`.
- Implemented RSS, Atom, and JSON feed views.
- Added `feed.php` configuration for feed generation.
- Introduced `ImageController` for image handling.
- Updated application routing to include `api.php`.

app/Http/Controllers/Api/CountryController.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Models\Country;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Http\Request;
+
+class CountryController extends Controller
+{
+    public function index(Request $request)
+    {
+        return Country::query()
+            ->select('id', 'name', 'code')
+            ->orderBy('name')
+            ->when(
+                $request->search,
+                fn(Builder $query)
+                    => $query
+                    ->where('name', 'ilike', "%{$request->search}%")
+                    ->orWhere('code', 'ilike', "%{$request->search}%"),
+            )
+            ->when(
+                $request->exists('selected'),
+                fn(Builder $query)
+                    => $query
+                    ->whereIn('code', $request->input('selected', []))
+                    ->orWhereIn('id',
+                        $request->input('selected', [])),
+                fn(Builder $query) => $query->limit(10),
+            )
+            ->get()
+            ->map(function (Country $country) {
+                $country->flag = asset('vendor/blade-country-flags/4x3-'.$country->code.'.svg');
+
+                return $country;
+            });
+    }
+
+    /**
+     * Store a newly created resource in storage.
+     * @return \Illuminate\Http\Response
+     */
+    public function store(Request $request)
+    {
+        //
+    }
+
+    /**
+     * Display the specified resource.
+     * @return \Illuminate\Http\Response
+     */
+    public function show(Country $country)
+    {
+        //
+    }
+
+    /**
+     * Update the specified resource in storage.
+     * @return \Illuminate\Http\Response
+     */
+    public function update(Request $request, Country $country)
+    {
+        //
+    }
+
+    /**
+     * Remove the specified resource from storage.
+     * @return \Illuminate\Http\Response
+     */
+    public function destroy(Country $country)
+    {
+        //
+    }
+}