Update notification timing could be better

[Leland]

• This is a new bug that hasn't been documented in a closed issue or in the Readme.

macOS version: 15.5
Rectangle version: v0.90 (96)
Logs if applicable (In Rectangle menu, hold option, "View Logging..."):

I was playing a fullscreen video game with Do Not Disturb mode on. An update popup for Rectangle appeared over the game and stole focus.

[rxhanson]

Thanks for reporting. I'll slate this for the next release.