Add support for custom values in the Zoom setting

[pygarap]

Pre-submit Checks

• I have searched Warp feature requests and there are no duplicates
• I have searched Warp docs and my feature is not there

Describe the solution you'd like?

The user will be able to use any custom value from 50% to 300%.

Is your feature request related to a problem? Please describe.

Be able to choose the perfect Zoom level for my monitor.

Additional context

No response

Operating system (OS)

macOS

How important is this feature to you?

4

Warp Internal (ignore) - linear-label:39cc6478-1249-4ee7-950b-c428edfeecd1

None

[onelaview]

I'm still eagerly waiting for this one. Blame my old age — I just can't find the right fit for my aging eyes with those fixed percentage options.