create amd module for dropdown navigation
create basic logic for dropdown nav
CON-2000 create toc structure for Venus
CON-2000 replace innerText with textContent
create new ui component for dropdown nav
CON-2000 replace children selector with querySelectorAll
Merge remote-tracking branch 'origin/CON-1655-dropdown-module' into CON-2000

Conflicts:
	extensions/wikia/Venus/scripts/articleModulesLoader.js
Merge pull request #5168 from Wikia/CON-2000

CON-2000 create toc structure for Venus
add dropdwon styles
fix article styles for toc
add TOC assets to AM for Venus
add dropdown widget logic + template
reafactor VenusTOC module
initialize TOC module
add comment
temporary selector change
Merge branch 'CON-NewArticle' into CON-1655-dropdown-module

Conflicts:
	extensions/wikia/AssetsManager/configGroups/VenusConfig.php
	extensions/wikia/Venus/styles/article/article.scss
change toc button selector
remove remove secific max height
remove unneeded styles