Add console logger for web to log warnings to console

[girdenis-p]

Resolves #98952. Adds a platform specific logger to the web which allows to print through console.warn in the browser and which links to the JS EngineConfig API.

This also seemed like an appropriate time to change the docstring to reflect the implementation more accurately. See comment on the docstring for a further explanation.

This PR is in draft because this needs discussion:

• Do we need the ability to log warnings as warnings in the console instead of errors?
• Consecutive printraw functions now log on seperate lines instead of the same line. This behaviour is similar to calling consecutive console.log functions. What is desired?
• Prints containing newlines used to be seperated but now they are grouped into one log. What is desired?

[girdenis-p]

The previous docstring said that this callback takes a variadic number of arguments to be printed. However, this callback has only ever took one argument to it because Module.print only takes one argument.

Variadic arguments are handled differently in JS than in C++ so any implementation of this function utilizing the variadic arguments through the spread operator ... would still work as intended even after this change.

[Calinou]

• Do we need the ability to log warnings as warnings in the console instead of errors?

I'd say warnings being logged as errors is a bug, so yes. We need to categorize them correctly so browser's log filtering options function as intended.

• Consecutive printraw functions now log on seperate lines instead of the same line. This behaviour is similar to calling consecutive console.log functions. What is desired?

I would prefer printraw() to work like it does on native platforms, i.e. print a message without a newline at the end so you can append to it later on (until you do another print(), that is). However, this isn't critical if we can't get it to work as it's seldom used.

• Prints containing newlines used to be seperated but now they are grouped into one log. What is desired?

I'd say this is desired, so that you can collapse the entire message using the browser's DevTools functions.