Problem

Two bugs were present in the metadata remover tool:

1. useState was incorrectly destructured, causing setProcessResult to be typed as null instead of a setter function, throwing a runtime error on call.
2. Uploading an unsupported file type crash silently into a generic error modal with no meaningful feedback to the user.

Changes

• Exported SUPPORTED_TYPES so it can be consumed by the UI layer.
• Fixed useState destructuring: setProcessResult into processResult, setProcessResult.
• Added isUnsupportedType state that is set in handleFiles
• Added a dedicated UI block that displays a clear File type not supported message with a retry button when an unsupported file is selected.
• Reset isUnsupportedType in [handleRestartProcess]