chore: Update CODEOWNERS file for template renderer

[Mrtenz]

Description

This updates the CODEOWNERS file for the ui/components/app/metamask-template-renderer folder to be co-owned by the confirmations team and Snaps team.

Related to: MetaMask/snaps#3206

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 [2c39bb5]

• builds: chrome, firefox
• builds (flask): chrome, firefox
• builds (MMI): chrome
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • content-script: 0
  • offscreen: 0

Page Load Metrics (1859 ± 86 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	1690	2326	1864	178	86
		domContentLoaded	1666	2268	1816	171	82
		load	1685	2336	1859	178	86
		domInteractive	26	81	34	12	6
		backgroundConnect	11	135	45	34	16
		firstReactRender	16	75	32	21	10
		getState	6	62	24	19	9
		initialActions	0	0	0	0	0
		loadScripts	1232	1791	1363	142	68
		setupStore	8	49	13	9	4
		uiStartup	1865	2738	2108	223	107

Bundle size diffs

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

[metamaskbot]

Builds ready [3b753dd]

• builds: chrome, firefox
• builds (flask): chrome, firefox
• builds (MMI): chrome
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
  • content-script: 0
  • offscreen: 0

Page Load Metrics (1845 ± 104 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	385	2448	1747	361	174
		domContentLoaded	1567	2374	1801	208	100
		load	1577	2468	1845	217	104
		domInteractive	25	131	43	28	13
		backgroundConnect	12	93	44	28	13
		firstReactRender	14	65	24	15	7
		getState	5	49	18	16	7
		initialActions	0	1	0	0	0
		loadScripts	1170	1878	1372	177	85
		setupStore	7	60	18	18	9
		uiStartup	1805	2917	2087	274	132

Bundle size diffs

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