chore: upgrade to L9

BREAKING CHANGE: This commit updates the Laravel framework to version 9. Additionally, it also updates outdated and abandoned dependencies in the composer.json file.

The resources/lang directory has also been moved to the repository's root directory.

lang/vendor/log-viewer/hu.json

@@ -0,0 +1,13 @@
+{
+    "Date": "Dátum",
+    "The list of logs is empty!": "A naplók listája üres!",
+    "All": "Összes",
+    "Emergency": "Vészhelyzet",
+    "Alert": "Riasztás",
+    "Critical": "Kritikus",
+    "Error": "Hiba",
+    "Warning": "Figyelmeztetés",
+    "Notice": "Értesítés",
+    "Info": "Információ",
+    "Debug": "Hibakeresés"
+}