MM-57878 Add PerformanceReporter for clientside performance metrics (#26800)

* Define rough code for PerformanceReporter

* Create a component to manage the PerformanceReporter

* Start adding tests for PerformanceReporter

* Add test for web vitals reporting

* Update schema to more closely match the API spec

* Collect marks as counters and further update structure of API payload

* Add some outstanding TODOs about the API structure

* Add counter for long tasks

* Add EnableClientMetrics without any System Console UI

* Have PerformanceReporter use EnableClientMetrics

* Have the PerformanceReporter only report results when logged in

* Add test for having PerformanceReporter fall back to fetch

* Stop logging errors for measurements failing

* Remove buffered from observer

* Remove the Mystery Ampersand

* Still record marks with telemetry actions even if telemetry is disabled

* Add timestamps to performance reports

* Reuse the new telemetry code for the old telemetry

* The second half of the last commit

* Use Node performance libraries in all tests

* Set version of PerformanceReport

* Switch to the proper version of EnableClientMetrics

* Remove TODO for unneeded field

* Add user agent and platform detection

* Updated metrics API route

webapp/channels/package.json

@@ -98,6 +98,7 @@
     "tinycolor2": "1.4.2",
     "turndown": "7.1.1",
     "typescript": "5.3.3",
+    "web-vitals": "3.5.2",
     "zen-observable": "0.9.0"
   },
   "devDependencies": {