style: Remove unused optional bindings

Author: dormant-user

.swiftlint.yml

@@ -4,7 +4,6 @@ disabled_rules:
   - function_body_length
   - line_length
   - multiple_closures_with_trailing_closure
-  - unused_optional_binding
   - cyclomatic_complexity
 
 # Optional: Customize length limits instead of disabling

FileBrowserClient/FileBrowserClient/FileListView.swift

@@ -851,7 +851,10 @@ struct FileListView: View {
     }
 
     func createResource(isDirectory: Bool) {
-        guard let _ = auth.serverURL, let _ = auth.token else { return }
+        guard auth.serverURL != nil, auth.token != nil else {
+            errorMessage = "Invalid authorization. Please log out and log back in."
+            return
+        }
 
         let formatter = ISO8601DateFormatter()
         formatter.formatOptions = [.withInternetDateTime, .withColonSeparatorInTimeZone]