master<-trunk

[hisahi]

Short description

• 1067: Limit prerequisites to checks in the same category

• 945: The user should know where they are

• 1068: Always show dependent checks below their prerequisites

• 979: The symbol of Labtool 2.0 in the top bar should be a link to my page

• 1063: Random color button when adding tags

• 1065: Minimum requirements should be week-specific

• 1066: Minimum requirements are buggy

• Invert selection
• Other bug fixes

DoD

I have:

• [x] added actual code.
• [x] produced clean code that passes ESLint.
• [x] code that actually does what it should.
• [x] documented the code or added documentation to the wiki.
• [x] added or modified test(s).
• [x] test(s) that actually pass.
• [x] works in trunk branch