fix: package should include markdown syntax

[kanej]

We include syntax support for Solidity embedded within markdown. However our build was not including the syntax file. This has been fixed in the extensions bundling script.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 54.65%. Comparing base (9866f63) to head (ae1890a).
Report is 1 commits behind head on development.

Additional details and impacted files

@@             Coverage Diff              @@
##           development     #616   +/-   ##
============================================
  Coverage        54.65%   54.65%           
============================================
  Files              226      226           
  Lines             5187     5187           
  Branches           800      800           
============================================
  Hits              2835     2835           
  Misses            2115     2115           
  Partials           237      237           

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