feat: Implement interface persistence

[hmalik88]

Implementing interface persistence based on a new property stored in the interface object called contentType, it is used to indicate whether the SnapInterfaceController should persist the interface. The property is added at various points in our system where an interface is created.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.48%. Comparing base (87234d3) to head (079b627).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2856      +/-   ##
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+ Coverage   94.47%   94.48%   +0.01%     
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  Files         486      486              
  Lines       10368    10398      +30     
  Branches     1582     1591       +9     
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+ Hits         9795     9825      +30     
  Misses        573      573              

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[FrederikBolding]

Wondering if we should have any limits on this? How long do we persist Snap notifications for?

[hmalik88]

So this is mainly to cover the edge case where the interface is lost for the detailed view notification across sessions. I realize it would persist an unread notification's interface indefinitely if the user never reads it, but that's an extreme edge case. I've started conversation with the notification team about exposing some settings to the user to control the lifecycle of notifications.