Bump vuetify from 3.6.14 to 3.6.15 in /frontend

Bumps vuetify from 3.6.14 to 3.6.15.

Release notes

Sourced from vuetify's releases.

v3.6.15

🔧 Bug Fixes

• click-outside: correctly remove shadow DOM event listeners (#20273) (9b02b0d), closes #19616
• VFileInput: emit null after VForm reset() (#20207) (6337f52), closes #20101
• VOverlay: close on scrim click in Shadow DOM without activator (#20291) (2c36fff)
• VOverlay: reuse container element in shadow DOM (3ee87ac), closes #20276 #20277
• VSnackbar: handle pointerleave event after transition ends (#20312) (d25879a), closes #20306
• VSpeedDial: Use content-class (#20319) (b10c4ab), closes #20051

:test_tube: Labs

• VNumberInput: forward VTextField properties (e1ed75f), closes #20135
• VTreeview: don't expose open (#20192) (40f7197)
• VTreeview: ignore type in items (f20636a), closes #19476

Commits

• 76af55c chore(release): publish v3.6.15
• ff80220 chore: fix missing labs components css on Windows (#20336)
• 4c1f4b6 chore: use sass-embedded
• e4ce28d chore: fix vuetify package build on Windows (#20293)
• 294cc73 chore: update vite to 5.4.0 (#20324)
• f28fdae chore: use pnpm shell emulator (#20327)
• e1ed75f fix(VNumberInput): forward VTextField properties
• 6337f52 fix(VFileInput): emit null after VForm reset() (#20207)
• 2c36fff fix(VOverlay): close on scrim click in Shadow DOM without activator (#20291)
• d25879a fix(VSnackbar): handle pointerleave event after transition ends (#20312)
• Additional commits viewable in compare view

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