[web] Introduce disable link modal

Summary:
When a link is created, on manage links modal there should be a button which opens disable link modal.
https://www.figma.com/file/a1nkbWgbgjRlrOY9LVurTz/Comm-%2F-Desktop-app?node-id=11341%3A280056&mode=dev

Disable links modal should allow disabling link or going back.
https://www.figma.com/file/a1nkbWgbgjRlrOY9LVurTz/Comm-%2F-Desktop-app?node-id=11341%3A280530&mode=dev

Depends on D8417

Test Plan:
Check if disable link button is present only when there's a link.
Click a button and check if it is possible to go back.
Click disable link button and check if it disables a link.

Reviewers: kamil, inka, bartek, ashoat

Reviewed By: ashoat

Subscribers: ted, ashoat

Differential Revision: https://phab.comm.dev/D8419