Bump postcss from 8.5.21 to 8.5.26 in /ui

[dependabot]

Bumps postcss from 8.5.21 to 8.5.26.

Release notes

Sourced from postcss's releases.

8.5.26

• Fixed list.split() regression (by @​lazerg).
• Track symlinks in path protection in source map loading (by @​drengir1).

8.5.25

• Fixed 8.5.17 visitor regression.
• Fixed list.split() for non-string values (by @​amir-rezaei).

8.5.24

• Preserve the BOM after the processing (by @​hdimer).

8.5.23

• Do not load source map without opts.from for security reasons.

8.5.22

• Fixed custom property losing semicolon before a comment (by @​sarathfrancis90).

Changelog

Sourced from postcss's changelog.

8.5.26

• Fixed list.split() regression (by @​lazerg).
• Track symlinks in path protection in source map loading (by @​drengir1).

8.5.25

• Fixed 8.5.17 visitor regression.
• Fixed list.split() for non-string values (by @​amir-rezaei).

8.5.24

• Preserve the BOM after the processing (by @​hdimer).

8.5.23

• Do not load source map without opts.from for security reasons.

8.5.22

• Fixed custom property losing semicolon before a comment (by @​sarathfrancis90).

Commits

• 07b2577 Release 8.5.26 version
• 47de6b9 Update CI
• 1493a83 Fix Rule#selectors losing the empty selector (#2129)
• 180db16 Typo
• 29e9e00 Resolve symlinks before the previous-source-map containment check (#2125)
• 3ba8f84 Update dependencies
• 87e72f6 Update lock file
• caaeeb9 Upgrade nanoid to fix infinite loop on zero size (#2124)
• 3609b6f Explain how to type plugin options
• fbad419 docs: show ESM and TypeScript plugin declaration (#2118)
• Additional commits viewable in compare view