Improve cleanup of observations.db

[amddg44]

Task/Issue URL: https://app.asana.com/0/414709148257752/1205463416606413/f
Tech Design URL:
CC:

Description:
Adds an additional path to check for location of observations.db

Steps to test this PR:

1. Testing on device, enable App Privacy Report if not already enabled (iOS Settings > Privacy & Security > App Privacy Report)
2. In the app visit a number of sites that make a lot of calls to other urls e.g. cnbc.com, bloomberg.com, cnn.com
3. Go back to the App Privacy Report and the activity should all be logged there
4. In Xcode download the container for the app and navigate to observations.db (should be in /AppData/Library/WebKit/WebsiteData/ResourceLoadStatistics)
5. Check the data stored in the db either using an app like DB Browser for SQLite or by running this command in terminal sqlite3 observations.db "select (select COUNT(*) FROM ObservedDomains)" and note the row count
6. In the app, tap the burn button
7. Go back to the App Privacy Report and almost everything should be cleared (there may be 1 or 2 leftovers but it shouldn't be many).
8. Navigate back to the app and then back to App Privacy Report and confirm there is no change in the data reported from the previous step (except maybe some DDG api calls)
9. Download the app container again and confirm that observations.db is now empty

Copy Testing:

• Use of correct apostrophes in new copy, ie ’ rather than '

Orientation Testing:

• Portrait
• Landscape

Device Testing:

• iPhone SE (1st Gen)
• iPhone 8
• iPhone X
• iPhone 14 Pro
• iPad

OS Testing:

• iOS 14
• iOS 15
• iOS 16

Theme Testing:

• Light theme
• Dark theme

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Internal references:

Software Engineering Expectations
Technical Design Template

[samsymons]

Working perfectly for me, nice work!