A userscript that adds a header that can toggle long code and quote blocks in comments

• The block header:
  • Allows the toggling of the long code & quote block views.
  • Includes the code language based on the syntax highlighting class name; if highlighting is not applied, "Block" is used as the default name.
  • Includes the number of lines within the block.
  • Click the header to toggle the view of the content immediately below the header.
  • Use Shift + Click to toggle all the view of all blocks within the same issue comment.
• Can be used along with the GitLab-collapse-markdown userscript.
• Use the userscript addon to change these settings (see screenshot below):
  • "Set GitLab Collapse in Comment Max Lines" to the number of lines within a block needed to add a header (set to 10 by default).
  • "Set GitLab Collapse in Comment Initial State" to expanded to not have the blocks initially collapsed (collapsed by default).
  • After changing either option, make sure to reload the page (Shift + F5) to have the updated setting take effect.

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