Fix monaco editor style differences between insiders and shipping

[rchiodo]

For #8006

Upgrade to latest monaco (latest on npm anyway)
Add style to make sure we match how monaco behaves in insiders
Checked that style is fine with shipping VS code too.

[IanMatthewHuff]

[codecov-io]

Codecov Report

Merging #8264 into master will increase coverage by 0.31%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #8264      +/-   ##
==========================================
+ Coverage    58.7%   59.02%   +0.31%     
==========================================
  Files         504      504              
  Lines       23093    23093              
  Branches     3728     3733       +5     
==========================================
+ Hits        13557    13630      +73     
+ Misses       8656     8583      -73     
  Partials      880      880

Impacted Files	Coverage Δ
src/client/language/characters.ts	33.33% <0%> (+2.56%)	⬆️
src/client/common/utils/version.ts	81.48% <0%> (+3.7%)	⬆️
src/client/providers/providerUtilities.ts	88.88% <0%> (+5.55%)	⬆️
src/client/datascience/cellFactory.ts	89.65% <0%> (+13.79%)	⬆️
src/client/api.ts	92.85% <0%> (+14.28%)	⬆️
src/client/common/utils/icons.ts	100% <0%> (+16.66%)	⬆️
...cience/jupyter/jupyterDebuggerNotInstalledError.ts	80% <0%> (+20%)	⬆️
src/client/formatters/serviceRegistry.ts	100% <0%> (+25%)	⬆️
...ience/jupyter/jupyterDebuggerRemoteNotSupported.ts	100% <0%> (+25%)	⬆️
...t/datascience/jupyter/jupyterDataRateLimitError.ts	100% <0%> (+33.33%)	⬆️
... and 2 more

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