feat: Add quickstart for browser marks and measures

[metal-messiah]

Summary

This adds a quickstart showing usage of new marks and measures, and links to documentation to get that feature enabled.

Pre merge checklist

• Did you check you NRQL syntax? - Does it work?
• Did you include a Data source and Documentation reference?
• Are all documentation links publicly accessible?
• Did you check your descriptive content for voice and tone?
• Did you check your descriptive content for spelling and grammar errors?
• Did you review your content with a subject matter expert? (e.g. a Browser agent quickstart is reviewed with a member of the Browser Agent team)

Dashboards

• Does the PR contain a screenshot for each of your dashboards?
• Do your screenshots show data?
• Has the sanitization script been run on each dashboard?

[CLAassistant]

All committers have signed the CLA.

[github-actions]

The PR checks have run and found the following warnings:

Warning	Filepath
"permissions" field should not be used	dashboards/browser-marks-and-measures/browser-marks-and-measures.json

Reference the Contributing Docs for Dashboards for more information.

[RamanaReddy8801]

Hi @metal-messiah, could you please make the review changes.

1. Is it possible to add alerts to this quickstart? It's considered best practice.
2. I noticed that the dashboard chart titles are not in sentence case. It's recommended to use sentence case for them, e.g., Marks Observed should be Marks observed.

[sjyothi54]

LGTM

[metal-messiah]

Hi @RamanaReddy8801

I have applied the name changes in the dashboard JSON. As far as alerts, this is non-specific generic data, tied directly to customer implementation patterns. We wont be able to provide meaningful alert conditions on this data, that would be up to the customer to make it fit their definition of their generic dataset.

[RamanaReddy8801]

Hi @metal-messiah,

I noticed the addition of the browser-page-resources quickstart dashboard JSON in this PR. Could you clarify the reason for including it? If it was added by mistake, could you please remove the browser-page-resources folder?

[RamanaReddy8801]

LGTM

[pkudikyala]

LGTM!