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 Additionally, it also updates outdated and abandoned dependencies in the composer.json file.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

@@ -0,0 +1,13 @@
+{
+    "Date": "Datum",
+    "The list of logs is empty!": "Det finns inga loggar att visa.",
+    "All": "Alla",
+    "Emergency": "Akut",
+    "Alert": "Alarmerande",
+    "Critical": "Kritisk",
+    "Error": "Error",
+    "Warning": "Varning",
+    "Notice": "Notis",
+    "Info": "Information",
+    "Debug": "Debug"
+}