Typescript refactoring and cleanup (productions) and prmon results plot (pipelines)

Efforts are made to

• de-spaghetti my code
• Convert the productions part of the website to typescript
• Try and take advantage of typing to validate the API output and make it easier to handle
  • possible caveat: if the API output changes - will the client complain about incompatible type interface?
  • can we get around this by only requiring a "minimum" type specification for returned API objects, while allowing for extra fields that may be added?
  • fine to throw errors if the structure for existing objects is changed - that would break the site anyway
• Try to use map et cetera where possible to build component arrays instead of harder-to-follow for loops
• Try to reduce unnecessary useState e.g. isLoaded could be made a const that depends on whether the API call result is filled or not

relates to #34 (closed)