chore(deps): update dependency katex to ^0.19.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
katex (source)	^0.18.0 → ^0.19.0

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Release Notes

KaTeX/KaTeX (katex)

v0.19.0

Compare Source

Documentation

• note strict changes shipped in 0.18.11 (#​4300) (cbb1fce)

BREAKING CHANGES

• Missing character metrics now reported via strict with error code symbolNotInFont, changing warning formatting, calling any strict callbacks, and producing errors in strict: "error" mode. Also, strict callbacks returning undefined or null now warn instead of ignoring the issue (and no longer typecheck); return false or "ignore" to suppress warnings.

0.18.11 (2026-10-01)

Features

• handle character metrics warnings via strict (#​4243) (4237070)

0.18.10 (2026-09-30)

Features

• make KaTeX fallback to browsr math font before Times New Roman (#​4298) (a477b2e)

0.18.9 (2026-09-23)

Features

• types: add contrib module declarations (#​4250) (aafa187)

0.18.8 (2026-09-23)

Bug Fixes

• array: preserve trailing rows in align (#​4283) (ddfcc29)

0.18.7 (2026-09-06)

Features

• add \reflectbox and \mapsfrom support (#​4262) (ab509fd)

0.18.6 (2026-09-05)

Bug Fixes

• array: preserve tags on empty final rows (#​4277) (02d552c)

0.18.5 (2026-08-31)

Bug Fixes

• char: accept U+10FFFF (#​4265) (6805538), closes #​2549

0.18.4 (2026-08-10)

Bug Fixes

• environment: report invalid environment names as ParseError (#​4256) (e507f75), closes #​3760 #​3760

0.18.3 (2026-08-09)

Bug Fixes

• allow braced arguments for delimsizing (#​4255) (1c973ae)

0.18.2 (2026-08-08)

Bug Fixes

• prevent prototype pollution in settings (#​4260) (0adf7e7)

0.18.1 (2026-07-19)

Bug Fixes

• htmlData: allow escaped commas in \htmlData (#​4236) (87a2b30), closes #​4204 #​4218

v0.18.11

Compare Source

Features

• handle character metrics warnings via strict (#​4243) (4237070)

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