feat(protocol-designer): add ability to clear staging slots directly

[shlokamin]

Overview

This PR adds the ability to clear staging area slots directly by interacting with a column 4 slot.

In order to preserve the functionality where pressing "done" does NOT delete labware in a slot of the labware is the same labware when users opened the toolbox, i added a parameter to the handleClear function to conditionally clear existing labware.

closes RQA-3626

Test Plan and Hands on Testing

Mess around with the deck setup tools. Add staging areas, add adapters, labware, modules, etc. Clear the slot both from the toolbox and the slot overflow menu. Just generally try to break it.

Changelog

• add ability to clear staging slots directly

Review requests

See test plan

Risk assessment

Low

[jerader]

if you zoom into the 3rd column staging area and press "clear", it incorrectly zooms out. we want it to stay zoomed in since the slot turns into a standard slot

Screen.Recording.2024-11-21.at.13.05.20.mov

[jerader]

Also, labware in 4th column slot is incorrectly deleted

Screen.Recording.2024-11-21.at.13.06.55.mov

[shlokamin]

uh oh thanks @jerader ill fix

[shlokamin]

@jerader i think the second issue is not a regression, it's in edge currently. but i think i fixed it and this is desired behavior now?