Add telemetry for method modeling panel

[charisk]

Adds some telemetry events for interactions with the modeling panel.

The method-modeling-set-multiple-modeled-methods is a bit generic, but we can improve that in the future if we want to.

Checklist

N/A:

• CHANGELOG.md has been updated to incorporate all user visible changes made by this pull request.
• Issues have been created for any UI or other user-facing changes made by this pull request.
• [Maintainers only] If this pull request makes user-facing changes that require documentation changes, open a corresponding docs pull request in the github/codeql repo and add the ready-for-doc-review label there.

[robertbrignull]

I have a few comments, but they're all very subjective so please do say if you feel otherwise.

There are also maybe some other interactions, but I don't know if we want to emit telemetry for them or not:

• Changing index (i.e. view next/previous modeling)
• Adding a new modeling
• Removing a modeling

Though adding/removing would also trigger the catch-all "setMultipleModeledMethods" event.

[charisk]

I have a few comments, but they're all very subjective so please do say if you feel otherwise.

There are also maybe some other interactions, but I don't know if we want to emit telemetry for them or not:

• Changing index (i.e. view next/previous modeling)
• Adding a new modeling
• Removing a modeling

Though adding/removing would also trigger the catch-all "setMultipleModeledMethods" event.

Thanks. I've stopped being lazy and added events for those events too.

[robertbrignull]

One typo, otherwise LGTM