Undo Button -> review state. Result files added to recents (#4337)

Produced PDFs go into recent files
Undo button added to review state
Undo causes undoConsume which replaces result files with source files.
Removes result files from recent files too

---------

Co-authored-by: Connor Yoh <[email protected]>

frontend/src/tools/UnlockPdfForms.tsx

@@ -34,6 +34,7 @@ const UnlockPdfForms = (props: BaseToolProps) => {
       operation: base.operation,
       title: t("unlockPDFForms.results.title", "Unlocked Forms Results"),
       onFileClick: base.handleThumbnailClick,
+      onUndo: base.handleUndo,
     },
   });
 };