Add watchdog to check for file changes in flatdb. Add username to the file...

Add watchdog to check for file changes in flatdb. Add username to the file being written in flatdb. Update requirements

- Include watchdog integration to monitor dir changes
- Update requirements and comment prints
- File write and logic fix. Responds to file change
- Properly initiate while loop, include debug info
- Finalize change loop
- Fix variable confusion in index route
- Fix variables
- Update documentation
- Fix comment
- Add username to file name