chore(accounts): replace esbuild with tsc/ts-node in libs/accounts

[dschom]

ON HOLD UNTIL esbuild-removal/shared LANDS

Split of #20390 into per-folder PRs. Scope: libs/accounts.

Because

• We want to test & develop with what we deploy.

This pull request

• Replaces esbuild with tsc/ts-node in libs/accounts.
• One of 18 split PRs from chore(all): replace esbuild-register with ts-node/register in pm2, sc… #20390.

Issue that this pull request solves

Closes:

• FXA-13524
• FXA-13525
• FXA-13526
• FXA-13527
• FXA-13528
• FXA-13529
• FXA-13530
• FXA-13531

Checklist

Put an x in the boxes that apply

• My commit is GPG signed.
• If applicable, I have modified or added tests which pass locally.
• I have added necessary documentation (if appropriate).
• I have verified that my changes render correctly in RTL (if appropriate).
• I have manually reviewed all AI generated code.

How to review (Optional)

Screenshots (Optional)

Please attach the screenshots of the changes made in case of change in user interface.

Other information (Optional)

There's a lot of cron jobs in FxA. I'm thinking we just need to keep an eye on these during next deployment to make sure something didn't get overlooked here.