Complete dashboard translations & small UI improvements (#69)

* fix dropdown action Estimate Dashboard and fix translating full Dasboard page

* Update app.php

* fix locale in app.php config

* Wizard install with translation, customer portal with translation, and fixing hardcoding strings to get translation

* fixes asked to review

* fixes pint

---------

Co-authored-by: Max <contact@agencetwogether.fr>
Co-authored-by: Darko Gjorgjijoski <5760249+gdarko@users.noreply.github.com>

app/Http/Controllers/V1/Installation/LanguagesController.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace InvoiceShelf\Http\Controllers\V1\Installation;
+
+use Illuminate\Http\JsonResponse;
+use InvoiceShelf\Http\Controllers\Controller;
+
+class LanguagesController extends Controller
+{
+    /**
+     * Display the languages page.
+     *
+     * @return JsonResponse
+     */
+    public function languages()
+    {
+        return response()->json([
+            'languages' => config('invoiceshelf.languages'),
+        ]);
+    }
+}