feat: Add signatureHelp and hover providers to monaco

[mattrunyon]

Corresponds with deephaven/deephaven-core#3607

This adds signatureHelp and hover providers if the JS API supports the corresponding requests

SignatureHelp is provided when you type a method and then type the ( character. There's also probably a keybinding in monaco to trigger it, but I'm not sure what it is.

Hover provided when you hover anything

Needs to use my core branch to test. After pulling that branch, will need to build/install the Python server using the following commands

./gradlew :py-server:assemble :py-embedded-server:assemble
pip install --force-reinstall py/server/build/wheel/deephaven_core-0.23.0-py3-none-any.whl py/embedded-server/build/wheel/deephaven_server-0.23.0-py3-none-any.whl

Then start using one of these commands. Groovy provided just to show it doesn't break anything in Groovy. There is no autocomplete in Python notebooks if you are using a Groovy worker.

./gradlew server-jetty-app:run # Python
START_OPTS="-Ddeephaven.console.type=groovy" ./gradlew server-jetty-app:run # Groovy

[codecov]

Codecov Report

Merging #1178 (9794715) into main (362928f) will decrease coverage by 0.29%.
The diff coverage is 54.05%.

@@            Coverage Diff             @@
##             main    #1178      +/-   ##
==========================================
- Coverage   44.48%   44.19%   -0.29%     
==========================================
  Files         437      448      +11     
  Lines       32944    33424     +480     
  Branches     8304     8403      +99     
==========================================
+ Hits        14654    14771     +117     
- Misses      18241    18603     +362     
- Partials       49       50       +1     

Flag	Coverage Δ
unit	44.19% <54.05%> (-0.29%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
packages/console/src/notebook/ScriptEditor.tsx	0.00% <0.00%> (ø)
packages/console/src/monaco/MonacoProviders.tsx	54.10% <54.10%> (ø)
packages/console/src/ConsoleInput.tsx	67.69% <100.00%> (ø)

... and 52 files with indirect coverage changes

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[dsmmcken]

There's also probably a keybinding in monaco to trigger it, but I'm not sure what it is.

https://code.visualstudio.com/shortcuts/keyboard-shortcuts-macos.pdf

from: https://code.visualstudio.com/docs/getstarted/keybindings#_keyboard-shortcuts-reference

I wonder if it would be nice to expose these in a non-editable fashion in the settings menu or something?
microsoft/monaco-editor#823 (comment)

[mattrunyon]

I need to test this with enterprise still to ensure nothing breaks. I don't think anything will, but I might need to add back quotes in the completion item triggers. We trigger completion in db.t(", but at one point I had some weird completion items in DHC when triggered on quote. Mostly paths related to where Python was on the server

[mofojed]

Side note, I thought we needed strict booleans, e.g. if (session.getSigHelp != null). Would help identify cases where we just put a method name instead of calling it, e.g. if (session.getMyBoolean) vs. if(session.getMyBoolean())
Not related to this change though.

[mattrunyon]

The default rules allow it because function does not have a falsy context. The rule defaults are to avoid if (str) if str is nullable since that condition covers both null and empty string

If you want to open a ticket to change it, the scenarios that are allowed by default are allowString, allowNumber, and allowNullableObject

https://typescript-eslint.io/rules/strict-boolean-expressions/#options