[Feature Request]: Support pointer back / forward buttons

[webfiltered]

Is there an existing issue for this?

• [x] I have searched the existing issues and checked the recent builds/commits

What would your feature do ?

Allow the back/forward buttons on e.g. desktop mice to navigate inside Comfy (e.g. between different workflows, subgraphs).

Should be off by default for web, enabled by default for desktop.

Proposed workflow

1. Go to workflow one
2. Go to workflow two
3. Press back button on mouse - workflow one is loaded in the same DS position

Additional information

Back / forward are already captured if the click is over canvas.

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