Synth-mapping-helper

* Fixes `--port` not working
* Dashboard now syncs settings between sessions & tabs
* Add BPM change to dashboard
* Shortening short rails now turns them into single notes instead of crashing

Note that the GUI is still in beta, so stuff may break and/or change.
Please leave feedback, either in [GitHub discussions](https://github.com/adosikas/synth_mapping_helper/discussions) or via Discord.

The newly consolidated "File Utils" tab can be used to find & repair "bugged notes" in .synth files (along with BPM change and file merge).

Note that the GUI is still in beta, so stuff may break and/or change.
Please leave feedback, either in [GitHub discussions](https://github.com/adosikas/synth_mapping_helper/discussions) or via Discord.

This adds a few more features from cli to the Dashboard and adds Autobackup to the GUI, which now watches a whole directory.

Note that the GUI is still in beta, so stuff may break and/or change.
Please leave feedback, either in [GitHub discussions](https://github.com/adosikas/synth_mapping_helper/discussions) or via Discord.

Now gives better errors when one of the values could not be parsed.

If you understand networking, you can now also configure ip/port of the GUI via command line arguments, such that you can open it from another device.
This allows using e.g. a tablet as "second screen" for even faster access to the dashboard, but may also leak your clipboard as there is no password protection.

Note that the GUI is still in beta, so stuff may break and/or change.
Please leave feedback, either in [GitHub discussions](https://github.com/adosikas/synth_mapping_helper/discussions) or via Discord.

This cleans up some dashboard code and adds some minor features, like segmenting rails based on time (instead of splitting at notes).

There should now also be the `install.bat` and `show_gui_beta.bat` directly below, so you can skip downloading and extracting the `windows_helpers.zip`.

Note that the GUI is still in beta, so stuff may break and/or change.
Please leave feedback, either in [GitHub discussions](https://github.com/adosikas/synth_mapping_helper/discussions) or via Discord.

Added a dashboard with most common operations.

Stacking, Spiral and Spikes will be added separately due to their large number of options.

Run `python3 -m synth_mapping_helper.gui` to start and please leave feedback, either in [GitHub discussions](https://github.com/adosikas/synth_mapping_helper/discussions) or via Discord.