Fix: highlight indent guides with wrapped lines

[mkslanc]

Issue #, if available: #5619

Description of changes:

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Pull Request Checklist:

• No backwards incompatible changes were made to Ace's public interface which is defined through the main typings file (ace.d.ts) and its references:
  • https://github.com/ajaxorg/ace/blob/master/ace.d.ts
  • https://github.com/ajaxorg/ace/blob/master/ace-modes.d.ts
  • https://github.com/ajaxorg/ace/blob/master/ace-extensions.d.ts

[codecov]

Codecov Report

Attention: Patch coverage is 94.44444% with 1 line in your changes missing coverage. Please review.

Project coverage is 87.01%. Comparing base (26eda25) to head (b738f6a).
Report is 32 commits behind head on master.

Files with missing lines	Patch %	Lines
src/layer/text.js	90.90%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5621      +/-   ##
==========================================
+ Coverage   86.89%   87.01%   +0.11%     
==========================================
  Files         594      594              
  Lines       43151    43521     +370     
  Branches     7151     7174      +23     
==========================================
+ Hits        37497    37869     +372     
+ Misses       5654     5652       -2     

Flag	Coverage Δ
unittests	87.01% <94.44%> (+0.11%)	⬆️

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[andredcoliveira]

Should line 12's second indent guide also be highlighted?

Checked using https://raw.githack.com/ajaxorg/ace/80a8379818bb0e058f223a279aa86f716938fca5/kitchen-sink.html

[mkslanc]

Should line 12's second indent guide also be highlighted?

Checked using https://raw.githack.com/ajaxorg/ace/80a8379818bb0e058f223a279aa86f716938fca5/kitchen-sink.html

New changes should make it