Add ability to view Klipper's input shaper macro results in the Tune pane

[matthewbadeau]

Is your feature request related to a problem? Please describe

When performing steps such as input shaping or belt tuning, graphs need to be viewed to determine next steps. Fluidd currently has the ability to view images within directories it can access but input shaping graphs created by klipper in the /tmp directory are currently not accessible.

Describe the solution you'd like

Klipper should have the ability to get the output from Klipper's input shaping macros and then display those in a place such as the Tune panel. This would improve a UI-only workflow within Fluidd.

Describe alternatives you've considered

[ResHelper] & Klippain's Shaketune] don't have this issue as the graphs are output in the klipper_config folder that Fluidd already has access to.

This is a good workaround for those who are looking for similar functionality.

Additional information

No response