feat: add vehicle edit page, image gallery with upload, print and CSV export

frontend/messages/de.json

@@ -47,5 +47,14 @@
   "common.confirm": "Bestätigen",
   "user.role.admin": "Administrator",
   "user.role.verkaeufer": "Verkäufer",
-  "user.role.buchhaltung": "Buchhaltung"
+  "user.role.buchhaltung": "Buchhaltung",
+  "vehicle.edit": "Bearbeiten",
+  "vehicle.print": "Drucken",
+  "vehicle.exportPdf": "Als PDF exportieren",
+  "vehicle.exportCsv": "Als CSV exportieren",
+  "vehicle.images": "Bilder",
+  "vehicle.uploadImage": "Bild hochladen",
+  "vehicle.deleteImage": "Bild löschen",
+  "vehicle.noImages": "Keine Bilder vorhanden",
+  "vehicle.exportAllCsv": "Alle als CSV exportieren"
 }

frontend/messages/en.json

@@ -47,5 +47,14 @@
   "common.confirm": "Confirm",
   "user.role.admin": "Administrator",
   "user.role.verkaeufer": "Sales",
-  "user.role.buchhaltung": "Accounting"
+  "user.role.buchhaltung": "Accounting",
+  "vehicle.edit": "Edit",
+  "vehicle.print": "Print",
+  "vehicle.exportPdf": "Export as PDF",
+  "vehicle.exportCsv": "Export as CSV",
+  "vehicle.images": "Images",
+  "vehicle.uploadImage": "Upload Image",
+  "vehicle.deleteImage": "Delete Image",
+  "vehicle.noImages": "No images available",
+  "vehicle.exportAllCsv": "Export All as CSV"
 }