tds override

[SabrinaTardio]

Task/Issue URL: https://app.asana.com/0/72649045549333/1209114783599181/f
Tech Design URL: https://app.asana.com/0/481882893211075/1208547600159199
CC:

Description: Makes the tds fetch dependent on the privacy configuration fetch (so that the url for tds can be taken from the configuration). Sets up experiment for tds. Note metrics will be added in a separate PR.

Steps to test this PR:

1. Run the Application
2. On the debugger filter for "Stored etag for trackerDataSet" and write down the etag
3. Go to Settings -> All debug Options -> Configuration URLs
4. Click on privacy config and use this URL: ### https://staticcdn.duckduckgo.com/trackerblocking/config/test/macos-config.json
5. On the debugger filter for "Stored etag for trackerDataSet" and check the etag is now 2ce60c57c3d384f986ccbe2c422aac44
6. Check also that "CBR compilation for TrackerDataSet succeeded" has been logged
7. Check “experiment_enroll_tdsNextExperimentBaseline_treatment” has been sent
8. Click on privacy config and reset to default URL
9. On the debugger filter for "Stored etag for trackerDataSet" and check the etag has gone back to previous one (382541021cbc55b218714db779561a51)
10. Check also that "CBR compilation for TrackerDataSet succeeded" has been logged

<!—
Before submitting a PR, please ensure you have tested the combinations you expect the reviewer to test, then delete configurations you know do not need explicit testing.

Using a simulator where a physical device is unavailable is acceptable.
—>

Definition of Done (Internal Only):

• Does this PR satisfy our Definition of Done?

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 15
• iOS 16
• iOS 17

Theme Testing:

• Light theme
• Dark theme

—

Internal references:

Software Engineering Expectations
Technical Design Template