caffeine-quick-setting: Make prefs dialog follow content size

Guido Güntherrequested to merge
guidog/phosh:caffeine-prefs-center into main

Otherwise in bottom sheet mode adding new rows doesn't make the dialog resize and the user doesn't see the new rows.

Before image
After image

To reproduce:

  • open prefs
  • remove all intervals
  • close prefs
  • open prefs again
  • add an interval
  • see that the dialog didn't resize without that MR

/cc @pseudorandom-x

Signed-off-by: Guido Günther agx@sigxcpu.org

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