fix: updated event name for site cell component

[NidhiKJha]

This PR is to update the event name for metametrics in site cell component

Related issues

Fixes: https://github.com/MetaMask/MetaMask-planning/issues/3263

Manual testing steps

1. Go to ui/contexts/metametrics.js
2. In trackEvent in this file, add a log to see the payload
3. Run extension with yarn start. Go to Permissions Page, click on edit button for accounts and networks and check the console to verify the payload.

Screenshots/Recordings

Before

NA

After

NA

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[metamaskbot]

Builds ready [26e448d]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (2012 ± 89 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	195	2382	1929	438	210
		domContentLoaded	1730	2315	1981	167	80
		load	1741	2389	2012	185	89
		domInteractive	17	103	52	24	12
		backgroundConnect	9	73	30	21	10
		firstReactRender	48	195	108	30	15
		getState	5	66	25	23	11
		initialActions	0	1	0	0	0
		loadScripts	1259	1728	1473	143	69
		setupStore	10	81	26	21	10
		uiStartup	1944	2588	2244	182	87

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[andreahaku]

LGTM