Add is admin to koala events

[Scollaco]

📲 What

• Adds the isAdmin property on the User model
• Appends the property user_is_admin to the Koala defaultsProperties.

🤔 Why

• This makes easier to filter out admins users on looker.

🛠 How

• The User model now receives the Boolean is_admin.
• Updating UserLenses and UserTemplate
• Adding the property user_is_admin on defaultsProperties of Koala.
• Fixing and adding tests for the new property

✅ Acceptance criteria

In order to test this, you should setup a proxy in order to see the requests and wait until the koala events are sent. The koala urls (based on the environment) are stored in Secrets.swift.

Once the you see the request, notice that the url has the format native/track?data=BASE64_STRING. You will have to copy the whole string after data= and decode using an online base64 decoder.

• Logout user should not see the is_admin property (This property is not sent to logged out users).
• Logged in users with an admin account should see user_is_admin:true
• Logged in users with no admin account should see user_is_admin:false

[dusi]

Looks good...I think you must have opened the PR after Danger finished running because you'll notice that trying to merge master (to resolve the branch being out of sync) SwiftFormat will actually complain about UserLenses.swift not being formatted properly so if you can do the 2 following things I'm happy to sign off

1. Merge master
2. Format code

[dusi]

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