fix: minor optical changes on the upload side

tests/Feature/NavigationTest.php

@@ -7,6 +7,6 @@ it('displays upload link in navigation for authenticated users', function () {
 
     $this->actingAs($user)
         ->get('/dashboard')
-        ->assertSee('Datei-Upload')
+        ->assertSee('Upload neuer Transaktionen')
         ->assertSee(route('upload'));
 });