templates: use TS server file

[MichaelDeBoey]

We use TS in all our docs & examples, so let's make these templates as much TS as possible

We have a TS server file in our grunge stack as well

[changeset-bot]

⚠️ No Changeset found

Latest commit: 58a77cb

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[jacob-ebey]

Thanks for this @MichaelDeBoey, been wanting to do this for a while.

[rossipedia]

This broke create-remix for express :(

[lili21]

error message after run npm run dev in express template

[nodemon] starting `cross-env NODE_ENV=production node ./server.js --require dotenv/config ./server.js`
node:internal/modules/cjs/loader:936
  throw err;
  ^

Error: Cannot find module '/Users/admin/just-for-fun/try-remix15/server.js'

[MichaelDeBoey]

@rossipedia @lili21 I'm fixing this in #6145
Feedback is welcome over there