Coming from T231613#5471903 we're dealing with two separate, very close icons, that should be consolidated into one.
1. OOUI's 'stripeToC'; currently only in use in Flow, see also {T141801}
2. MinervaNeue's new 'toc-*' icons from https://gerrit.wikimedia.org/r/#/c/mediawiki/skins/MinervaNeue/+/534865/
=== Expected result
Use one icon for table of contents.
=== Design
| {F30284647} | vs | {F31630526 width=50%}
in comparison bullet point list:
{F31630590 width=50%}
In context:
| Minerva TOC | Flow
| {F30284654} | {F30284657}
SVGs:
| {F30284662} | {F30284661}
=== Proposal
[] Deprecate & remove 'stripeToC' in OOUI
[x] Deprecate
[] Remove it
[x] Use 'listBullet' in Flow
[x] Use 'listBullet' in MinervaNeue
=== QA steps
[] Visit [[ https://en.m.wikipedia.beta.wmflabs.org/wiki/Albert_Einstein | Albert Einstein ]] and look out for ToC interaction element. Confirm that 'listBullet' icon {F31630590 width=50%} is used
[] Visit https://www.mediawiki.org/wiki/Manual_talk:Coding_conventions/CSS and confirm ”Browse topics“ interaction elements uses 'listBullet' icon