[gnome-calculator] Calculator is not integrated with universal search

Hi,

This is a very minor problem but when installed through snap, gnome-calculator is not integrated with the universal search of Gnome 3 activities page.

Reproduce:

  1. install with snap install gnome-calculator
  2. access universal search with the ‘OS’ key or by going to ‘Activities’
  3. type 3+3, no result is displayed

Workaround:

  1. uninstall with snap remove gnome-calculator
  2. install with apt install gnome-calculator
  3. access universal search with the ‘OS’ key or by going to ‘Activities’
  4. type 3+3, ‘6’ is displayed

https://bugs.launchpad.net/ubuntu/+source/gnome-calculator/+bug/1753183

I don’t think any GNOME Shell search providers work for snap apps. I looks like there was some discussion/development about it, but not recently.