fix(sonner): make close button visible on light and dark toasts

[RushikeshGandhmal]

Description

Sonner's toast close button renders with opacity: 0.4 by default and inherits background/border colors from the toast theme. On light toasts the icon blends into the surface; on dark/colored toasts the inherited dark background makes the button nearly invisible.

Changes

apps/web/styles/globals.css

• Added a scoped CSS override targeting [data-sonner-toast] [data-close-button]
• Pins opacity: 1, background: white, color: #374151, and border-color: #e5e7eb so the close button is always visible regardless of toast theme

Why

Sonner doesn't expose a prop to control close button appearance per-theme. The only reliable fix is a CSS override scoped to the toast container — this avoids touching the Sonner internals while keeping the button consistent across all toast variants.

Screenshots

Before

After

Summary by CodeRabbit

• Bug Fixes
  • Fixed styling of toast notification close buttons to ensure proper visibility and consistent appearance across all themes.

[vercel]

@RushikeshGandhmal is attempting to deploy a commit to the Dub Team on Vercel.

A member of the Team first needs to authorize it.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 00097a24-ba3e-46bd-b097-09fbfa36c600

📥 Commits

Reviewing files that changed from the base of the PR and between 0f13839 and 7bcda95.

📒 Files selected for processing (1)

• apps/web/styles/globals.css

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📝 Walkthrough

Walkthrough

Added explicit CSS styling rules for Sonner toast close buttons to control their opacity, background color, text color, and border color across all toast themes using !important flags.

Changes

Cohort / File(s)	Summary
Sonner Toast Close Button Styling apps/web/styles/globals.css	Added CSS rule for [data-sonner-toast] [data-close-button] with forced opacity, white background, gray text color, and light border styling.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 A close button now shines so bright,
With crisp white background catching light,
The gray text whispers, borders gleam,
Toasts dismiss with CSS dream! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: fixing visibility of Sonner toast close buttons across light and dark themes by adding CSS styling.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[RushikeshGandhmal]

@steven-tey can you please review the PR?