[Copilot] Variable documentation prompt

[zhpenkov]

This prompt aims to assist developers in generating SCSS variable documentation that follows proper conventions.

How to use:

1. Navigate to _variables file
2. Open Copilot chat
3. Select Agent
4. Type / in chat
5. Select variable-docs

Prerequisite resources:
https://code.visualstudio.com/docs/copilot/copilot-customization#_centrally-manage-instructions-and-prompt-files-in-vs-code

[github-actions]

Packages Report

	core	default	classic	bootstrap	material	fluent	utils
Size	29.15 KB (0.0%)	780.79 KB (0.0%)	780.81 KB (0.0%)	792.87 KB (0.0%)	926.35 KB (0.0%)	1151.57 KB (0.0%)	625.19 KB (0.0%)
Gzip Size	4.85 KB (0.0%)	100.92 KB (0.0%)	101.19 KB (0.0%)	103.26 KB (0.0%)	114.30 KB (0.0%)	136.36 KB (0.0%)	52.16 KB (0.0%)
Compile Time	1 s (0.0%)	3 s (0.0%)	3 s (0.0%)	4 s (0.0%)	4 s (0.0%)	4 s (0.0%)	3 s (0.0%)