Improved Autocomplete Hinter

[RandomGamingDev]

Increasing Access

This would make it easier to code in the p5.js editor, lessen the irritation of typos for beginners, as well as improving the quality of life for developers in general. This is because the current Autocomplete Hinter doesn't hint at variables, functions, or classes created by the user, and mostly just serves as (and this is a personal belief) a worse version of the p5.js documentation that clogs up the screen by covering code, and that doesn't show examples or explain how a function works.

Feature enhancement details

• Add autocomplete hints for variables, functions, and classes
• Add an option to access the documentation for interacting with code belonging to p5.js
• Add an option to jump to the variable, function, or class when interacting with code belonging to the sketch itself
• Maybe try something like ace.js's approach (here are some links talking about ace.js's autocomplete)
  a. https://github.com/ajaxorg/ace/blob/e59ae67d1c348ea6cb6b2b112b4a504a09fabfba/src/autocomplete.js#L68
  b. https://stackoverflow.com/questions/13545433/autocompletion-in-ace-editor
• Here's the previous issue mentioning adding the Autocomplete Hinter and which resulted in the addition of the current hinter: p5.js library Autocomplete and/or link to specific parts of reference #99

[lindapaiste]

• Add an option to access the documentation for interacting with code belonging to p5.js

This should be the easiest one to implement, so probably a good starting point.