This affects all dropdowns in Vector 2022, including the
user menu in the header and the language variants and
"more" menu in the article toolbar.
By relying on shared styles instead of separate implementations,
this change also reduces the size of the skins.vector.styles
module by 1.6kB (uncompressed).
Visual changes:
- The links in the user menu are now blue
- Dropdown links in the user menu and tabs are blue
- The dropdown labels in the tabs are black not dark gray.
Bug: T312157
Bug: T308344
Change-Id: I002d5454838a5516b6ee6c7c38721209ed28508b
Splits MenuDropdown styles into modern and legacy styles.
Leaves a common MenuDropdownCheckbox.less file (for lack
of a better name) for common styles related to the checkbox
behaviour and dropdown menu resets.
Adds a new file in common/mixins.less for a shared
dropdown mixin.
Bug: T312157
Change-Id: Ib60b25ea3121843ed5ed54820d6295a81289b332