Update dependency cssnano to v9.2.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
cssnano	9.1.2 → 9.2.0

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Release Notes

cssnano/cssnano (cssnano)

v9.2.0: v9.2.0

Compare Source

Features

• Merge box alignment properties into the place-content, place-items and place-self shorthands, such as align-items:center;justify-items:start into place-items:center start. This only happens when every browser in your Browserslist targets supports the shorthands, because a browser that does not would ignore both alignments. The defaults query includes browsers with unknown support, such as Opera Mini and UC Browser, so it keeps the longhands. Values that use safe, unsafe or last baseline merge only when both values use the same keywords. postcss-merge-longhand now accepts the Browserslist options overrideBrowserslist, stats, path and env.

Fixes

• Write numbers in scientific notation when it is shorter, such as 1e-6px for 0.000001px and 1e6px for 1000000px. This also applies when length unit conversion is disabled. Numbers written without a decimal point, such as z-index:1000000, keep their form, because an <integer> cannot use scientific notation.

• Stop merging longhands across a nested rule or at-rule. The shorthand ended up after the nested rule and overrode it, so in a{margin-top:1px;&{margin-top:2px}…} the nested margin-top was lost. This applies to margin, padding, border, border-radius and columns. Declarations on each side of a nested rule are now merged separately. An at-rule without a block, such as @apply x;, also separates them, since it may add declarations. An empty rule such as &{} does not. A border-image or all declaration before a nested rule no longer prevents merging the border longhands after it.

• Stop merging rules that have an invalid selector, such as b: hover, [a b], :lang(en fr) or a||b. An invalid selector makes the whole selector list invalid, so the browser also dropped the valid rule it was merged with.

• Only treat a dimension as the font size in the font shorthand when it has a length unit. An invalid value such as font:bold 1s "Arial Black" is now left unchanged.

• Leave the font shorthand unchanged when it contains attr(), if(), inherit() or a custom function such as --name(), as already done for var() and env(). Their result is only known when the browser computes the value.

• Remove a zero color stop position only when it has the right type for the gradient. conic-gradient() now drops 0deg and keeps an invalid 0px, while linear and radial gradients still drop 0px. -webkit-linear-gradient() keeps to bottom and other to directions as written, since the prefixed syntax measures angles differently.

• Stop turning a comment inside a selector into a descendant combinator. A comment is not whitespace, so .a/**/.b selects elements with both classes, including inside :is(), and is no longer rewritten as .a .b. Invalid selectors such as div/**/span are left as written instead of becoming valid.

• Leave rules with an invalid selector unchanged, including an ID selector that starts with a digit, such as #​1a, and a combinator after a pseudo-element, such as a::before b.

• Shorten top center and bottom center to top and bottom, instead of 0 and 100%, which the browser reads as horizontal positions. center top and center bottom are now shortened the same way.

  Leave a position unchanged when it cannot be safely rewritten:

  • in a background layer where another value splits the position, as in left no-repeat center, which is invalid;
  • when it contains a function such as attr(), if() or a custom --function(), which may return a keyword, as var() already did;
  • when an invalid three-value position contains a math function, such as left abs(1px) top, as calc() already did.

• Keep strings unchanged when removing a line continuation (a backslash before a newline) right after an escape. In "\31 followed by a line continuation and 2", joining the lines would turn \31 into \312, so the result is now "\31 2".

  Leave @charset unchanged. Browsers only recognize it with double quotes, so rewriting single quotes would make an ignored @charset take effect.

• Update postcss-calc to 11.2.2. postcss-calc() now attempts to preserve fractions if the replacement would lose too much precision

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