Update dependency katex to v0.16.0

This MR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
katex (source)	0.15.6 -> 0.16.0

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Release Notes

KaTeX/KaTeX

v0.16.0

Compare Source

Bug Fixes

• copy-tex: Use JS (instead of CSS) to select full equation, solving display glitches (#​3586) (8c2d852)

BREAKING CHANGES

• copy-tex: copy-tex extension no longer has (or requires) a CSS file.

0.15.6 (2022-05-20)

Features

• Support \Braket, \set, and \Set (#​3214) (9e3ae4d)

0.15.5 (2022-05-20)

Bug Fixes

• Avoid crash when \ce{} is empty (#​3627) (4865e45)

0.15.4 (2022-05-20)

Features

• Support Unicode (sub|super)script characters (#​3633) (d8fc35e)

0.15.3 (2022-03-13)

Bug Fixes

• Apply operator spacing to Unicode ∙ ∘ ∖ (#​3584) (b362fc0)

0.15.2 (2022-01-12)

Bug Fixes

• \mathinner MathML when invoked as a denominator. (#​3501) (1f85125), closes #​3500

0.15.1 (2021-10-31)

Features

• \nonumber/\notag support, \tag per row of {align} (#​2952) (52c4778), closes #​2950 #​2379

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