Bump sass from 1.77.6 to 1.77.7 in /webapp

Bumps sass from 1.77.6 to 1.77.7.

Changelog

Sourced from sass's changelog.

1.77.7

• Declarations that appear after nested rules are deprecated, because the semantics Sass has historically used are different from the semantics specified by CSS. In the future, Sass will adopt the standard CSS semantics.

  See the Sass website for details.

• Potentially breaking bug fix: // in certain places such as unknown at-rule values was being preserved in the CSS output, leading to potentially invalid CSS. It's now properly parsed as a silent comment and omitted from the CSS output.

Commits

• 7203d65 Deprecated mixed declarations (#2267)
• 1edc247 Avoid [this] in Dartdoc comments (#2273)
• a164889 Enable AOT build for windows-arm64 (#2270)
• 04b6251 Parse silent comments in _interpolatedDeclarationValue() (#2266)
• 860eb5a Fix linux-ia32, linux-arm-musl, and windows-arm64 releases (#2265)
• See full diff in compare view

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