refactor: Typescript conversion of switch-ethereum-chain.js

[NiranjanaBinoy]

Part of #23014
Fixes #23473

Converting the level 6 dependency file app/scripts/lib/rpc-method-middleware/handlers/switch-ethereum-chain.js to typescript for contributing to metamask-controller.js.

Description

Related issues

Fixes:

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I’ve followed MetaMask 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.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[socket-security]

No dependency changes detected. Learn more about Socket for GitHub ↗︎

👍 No dependency changes detected in pull request

[github-actions]

This PR has been automatically marked as stale because it has not had recent activity in the last 60 days. It will be closed in 14 days. Thank you for your contributions.

[github-actions]

This PR was closed because there has been no follow up activity in the last 14 days. Thank you for your contributions.

[sonarqubecloud]

Quality Gate passed

Issues
4 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

Attention: Patch coverage is 78.94737% with 4 lines in your changes missing coverage. Please review.

Project coverage is 69.99%. Comparing base (4111fb1) to head (9731edf).

Files with missing lines	Patch %	Lines
...ethod-middleware/handlers/switch-ethereum-chain.ts	78.95%	4 Missing ⚠️

Additional details and impacted files

@@                     Coverage Diff                     @@
##           ts-ethereum-chain-utils   #23902      +/-   ##
===========================================================
- Coverage                    70.12%   69.99%   -0.14%     
===========================================================
  Files                         1428     1422       -6     
  Lines                        50107    49932     -175     
  Branches                     13897    13864      -33     
===========================================================
- Hits                         35136    34945     -191     
- Misses                       14971    14987      +16     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[metamaskbot]

Builds ready [9731edf]

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

Page Load Metrics (316 ± 334 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	84	250	118	34	16
		domContentLoaded	10	58	27	16	8
		load	52	2449	316	696	334
		domInteractive	10	58	27	16	8

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 191 Bytes (0.01%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[github-actions]

This PR has been automatically marked as stale because it has not had recent activity in the last 60 days. It will be closed in 14 days. Thank you for your contributions.