Make list of skipped suggestions an expandable detail

[timo-a]

Thanks for stopping by to let us know something could be better!

Is your feature request related to a problem? Please describe.
In the case of a review such as here a long list of line numbers is added in a comment.

This list is nice information but hard to browse past when I don't care about the information, which is most of the time.
I just want to review, I'm not going to manually navigate to any of those lines.

Describe the solution you'd like

The html tags <summary> and <detail> should be used to allow users to expand the list on demand but not make the info take up space until then. Examples can be found here:
https://gist.github.com/scmx/eca72d44afee0113ceb0349dd54a84a2

=> something like this:
'<details><summary>Some suggestions could not be made:</summary>\n\n' + {all the file and line info} + '\n\n</details>'

would look something like this:

Start of example

Some suggestions could not be made:

• src/main/java/tools/jackson/core/Base64Variant.java

  • lines 47-48
  • lines 59-61
  • lines 273-273
  • lines 285-285
  • lines 376-377
  • lines 454-454
  • lines 470-470
  • lines 524-524
  • lines 800-801

• src/main/java/tools/jackson/core/Base64Variants.java

  • lines 35-35
  • lines 49-49
  • lines 59-59
  • lines 67-67
  • lines 82-82

• src/main/java/tools/jackson/core/JacksonException.java

  • lines 12-12
  • lines 36-36

• src/main/java/tools/jackson/core/JsonGenerator.java

  • lines 1297-1297
  • lines 1363-1363
  • lines 1749-1749
  • lines 1812-1812
  • lines 1899-1900

End of example

Describe alternatives you've considered
Users memorize the key combination to scroll past an entire comment.

Additional context
Example of such a way too long comment(same link as the first one, above): timo-a/jackson-core#2 (review)
Relevant section of code in this repo:

code-suggester/src/github/review-pull-request.ts

Lines 41 to 48 in f091b69

	return (
	'Some suggestions could not be made:\n' +
	Array.from(invalidHunks, ([filename, hunks]) =>
	fileErrorMessage(filename, hunks)
	).join('\n')
	);
	}