fix(typescript) - add typescript runtime test

[pcriadoperez]

• Add tests to import ccxt and compile typescript project using commonjs and esnext
• Fixes type errors that showed up during compile

[carlosmiei]

also the build is not working

[carlosmiei]

@pcriadoperez Question, don't we need to update every place where we initialize these structures?

[pcriadoperez]

It is not needed as it defaults to unknown, but I'll add it as it's good practice. I also added that you can only add an item of the same type as the array

[carlosmiei]

@pcriadoperez humm locally I get this error after npm run package-test

added 2 packages, and audited 3 packages in 1s

found 0 vulnerabilities
[ESM] Version 4.3.11
[ESM] number of exchanges: 103
[CJS] Version 4.3.11
[CJS] Number of exchanges: 103
npm ERR! Missing script: "test:ts"
npm ERR! 
npm ERR! To see a list of scripts, run:
npm ERR!   npm run

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/cjg/.npm/_logs/2024-05-02T15_30_07_931Z-debug-0.log

[pcriadoperez]

Runs npm run package-test without errors ✅