Opening settings editor should always focus search input field

[bpasero]

Steps to Reproduce:

1. open settings editor
2. search for a setting
3. change a setting
4. close settings editor
5. open settings editor

=> 🐛 it may be questionable to restore all the view state, not sure I like that. but for sure the focus should return to the input field so that I can just start typing. ideally the text in the input field is also fully pre-selected to that I can quickly clear the results.

[roblourens]

I changed this on purpose for this scenario

• Change a setting
• Ctrl+tab to another editor
• Ctrl+tab back, I want focus to be on the same setting

#57640

We still can't tell the difference between closing an editor and just switching away to another tab right?

[roblourens]

Maybe cmd+,, the menu item, etc can open the settings UI then focus the search input. Then if you open it that way, we focus the search input, but if you ctrl+tab or click the tab to open it, we keep the current behavior.

[bpasero]

We still can't tell the difference between closing an editor and just switching away to another tab right?

The input would get a call to close() upon closing and emits a onDidDispose() event if that helps.