Keep latest input (Feature Request)

[pat-githubber]

Observed Behavior

1. Type in search light e.g.: 1+3
2. Copy result
3. Exit search light with Esc
4. Reopen search light
5. Search light input is empty (which is unfortunate to keep calculating, e.g. 1+3+2)

Expected Behavior

Keep latest input.
MacOS and Windows Spotlight keep the latest input and the entire input history (cmd+z to retrieve previous inputs)