feat(cli): add command to list installed browsers

[niba]

Add a new CLI command to list all browser installations managed by Playwright. Fixes #34183

This command shows browsers installed by the current Playwright instance
npx playwright list

To list browsers installed by all Playwright instances, use the --all flag:

npx playwright list --all

[niba]

@microsoft-github-policy-service agree

[github-actions]

Test results for "tests 1"

1 failed
❌ [webkit-library] › tests/library/screenshot.spec.ts:44:14 › page screenshot › should work with a mobile viewport @webkit-ubuntu-22.04-node18

3 flaky

⚠️ [firefox-page] › tests/page/page-evaluate.spec.ts:403:3 › should throw for too deep reference chain @firefox-ubuntu-22.04-node18
⚠️ [webkit-library] › tests/library/screenshot.spec.ts:55:14 › page screenshot › should work with a mobile viewport and clip @webkit-ubuntu-22.04-node18
⚠️ [playwright-test] › tests/ui-mode-test-watch.spec.ts:145:5 › should watch all @windows-latest-node18-1

38784 passed, 808 skipped
✔️✔️✔️

Merge workflow run.

[dgozman]

Thank you for the PR! I left some higher-level comments for now.

[dgozman]

@niba Do you plan to finish this one? We've discussed this again with the team, and think that this should be a single command npx playwright install --list that will list browsers from all playwright installations, and highlight the current one similar to how you do it.

[niba]

@dgozman I've been waiting for clarification about the CLI API. I'll finish it over the weekend. Thanks!

[github-actions]

Test results for "tests 1"

2 flaky

⚠️ [firefox-page] › page/page-evaluate.spec.ts:424:3 › should throw for too deep reference chain @firefox-ubuntu-22.04-node18
⚠️ [playwright-test] › ui-mode-test-watch.spec.ts:145:5 › should watch all @windows-latest-node18-1

39133 passed, 806 skipped
✔️✔️✔️

Merge workflow run.

[niba]

I refactored the code and implemented the logic as a ⁠--list option. I decided to remove some unnecessary new lines from the output because it can be a bit bloated if you have many instances on your computer. This is how it looks:

[github-actions]

Test results for "tests 1"

3 flaky

⚠️ [firefox-page] › page/page-evaluate.spec.ts:424:3 › should throw for too deep reference chain @firefox-ubuntu-22.04-node18
⚠️ [firefox-page] › page/page-network-response.spec.ts:321:3 › should return body for prefetch script @firefox-ubuntu-22.04-node18
⚠️ [webkit-library] › library/screenshot.spec.ts:44:14 › page screenshot › should work with a mobile viewport @webkit-ubuntu-22.04-node18

39029 passed, 921 skipped
✔️✔️✔️

Merge workflow run.