Add a button to open the first app group folder

[squall2022]

"Open first app group folder" open the first app group folder of the selected application.

Output of xcrun simctl listapps <device_id>:

"bundle_id" = {
   [...]
   DataContainer = "file:///Users/xxxx/Library/Developer/CoreSimulator/Devices/4ED1E16E-52A3-4A6F-BFE4-6329C60D2840/data/Containers/Data/Application/2C05DC3C-48B8-44FB-9E22-BE3A5BDF9FF3/";
   GroupContainers = {
      "group_id" = "file:///Users/xxxx/Library/Developer/CoreSimulator/Devices/4ED1E16E-52A3-4A6F-BFE4-6329C60D2840/data/Containers/Shared/AppGroup/4FC3F1B2-76B4-44A4-80F8-92E65B48A41B/";
   };
   [...]
};

Feature requested here: https://github.com/twostraws/ControlRoom/issues/83

[twostraws]

Fantastic – thank you very much!