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 Additionally, it also updates outdated and abandoned dependencies in the composer.json file.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/it.json

@@ -0,0 +1,13 @@
+{
+    "Date": "Data",
+    "The list of logs is empty!": "L'elenco dei log è vuoto!",
+    "All": "Tutti",
+    "Emergency": "Emergenza",
+    "Alert": "Allarme",
+    "Critical": "Critico",
+    "Error": "Errore",
+    "Warning": "Avviso",
+    "Notice": "Notifica",
+    "Info": "Info",
+    "Debug": "Debug"
+}