Added link hover decoration variable

Make the docs' nav sidebar scrollable

Fix #14856

Update node dependencies.

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Fix a small typo in comment.

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Add jQuery version check to existing jQuery presence check

Use e.target instead :focus selector.

Fixes #14809.
Closes #14825.

Clarify order of tabs events

Document .alert-dismissible .close restrictions

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Closes #14772.

Fixes #14756.
Closes #14767.

also includes tiny fix/clarification to two existing unit tests for the
.active class, adding data-toggle=“button” explicitly to the tested
buttons

Closes #14819.

Added/removed blank lines in the docs for consitency

Basically it's impossible to use the navigation if it's expanded. This will allow it to be scrollable so that the menus are accessable.

Update customizer libraries

Sorted various lines using atom/sort-lines

add role="button" to a couple more dummy-anchor btns

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