Changed es directory es by es-es (#1421)

This structure will allow for other variants derived from the Spanish of Spain.

Co-authored-by: Nabeel S <nabeelio@users.noreply.github.com>

resources/lang/es-es/dashboard.php

@@ -0,0 +1,11 @@
+<?php
+
+return [
+    'totalhours'     => 'Horas totales',
+    'yourbalance'    => 'Tu balance',
+    'yourlastreport' => 'Tu último informe',
+    'noreportsyet'   => 'No hay informes todavía.',
+    'fileonenow'     => 'Archivar uno ahora.',
+    'weatherat'      => 'Clima en :ICAO',
+    'recentreports'  => 'Informes recientes',
+];