Clicking on a change pill should preserve focus in chat

[bpasero]

Steps to Reproduce:

1. have chat output with change pills
2. click on a pill

=> notice how focus immediately moves into the editor

Rather it should focus the pill but keep focus.

In addition:

• double click should move focus
• keyboard enter/space should move focus
• Alt+click should open to the side
• mouse middle click should pin

[aiday-mar]

Mostly verified. Is space on the focused pill supposed to move the focus to the editor? It wasn't working.