integrate metrics & add metrics for snap detail page

[ilayda-cp]

Done

Integrates the @canonical/analytics-events package into snapcraft.io to track user interactions on snap detail pages.

How to QA

• go to https://snapcraft-io-5604.demos.haus/artikulate
• open to dev console
• go to network tab
• scroll to the Where people are using <snap_name> section
• hover, click etc
• wait for 5-10 secs verify "events" request is sent with correct values

Testing

• This PR has tests
• No testing required (explain why):

Security

• Security considerations for review (list them):
  • Examples:
  • Access control: users can only access their own data
  • Input: user input is validated and sanitised
  • Sensitive data: secret or private data is not exposed in any way
  • ...
• This PR has no security considerations (explain why):

Issue / Card

Fixes https://warthogs.atlassian.net/browse/WD-32982

UX Approval

• This PR does not require UX approval
• This PR does require UX approval (add context):

[webteam-app]

Demo

Jenkins

demos.haus

[steverydz]

LGTM 👍

[edisile]

lgtm! not sure what caused the big change to yarn.lock but you might want to remove that and rebase on main when merging

[ilayda-cp]

@edisile i added a package "@canonical/analytics-events"