Allow configuration of resource allocated per extension

[patrickelectric]

As android or windows OS, we should limit the resource allocation that a specific app should use. If an app is using 100% of cpu or allocating all RAM memory, we should close the running extension, stop or wait for it.

[ES-Alexander]

I believe the resource allocation part of this is fixed by #1256 (current allocation UI added+shown in #1264).

Not sure if the "close/wait on hang" functionality is handled somewhere explicitly, but it's maybe ok with the existing disable/restart buttons? Or was the idea to have a popup/notification even when not actually in the extension manager?