fix(toast): updated toast styling

[najlaskr]

• Updated toast styling with subtle background variants
• Left (before), right (after)

[pkg-pr-new]

npm i https://pkg.pr.new/@cloudflare/kumo@316

commit: d3f8ef5

[github-actions]

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Commit: d3f8ef5

[github-actions]

Visual Regression Report

13 screenshot(s) with visual changes:

Button / Basic

346,585 px (73.83%) changed

Before	After	Diff

Button / Variant: Primary

129,297 px (52.2%) changed

Before	After	Diff

Button / Variant: Secondary

129,050 px (52.1%) changed

Before	After	Diff

Button / Variant: Ghost

129,378 px (52.24%) changed

Before	After	Diff

Button / Variant: Destructive

128,938 px (52.06%) changed

Before	After	Diff

Button / Variant: Outline

129,247 px (52.18%) changed

Before	After	Diff

Button / Variant: Secondary Destructive

128,135 px (51.73%) changed

Before	After	Diff

Button / Sizes

426,189 px (77.48%) changed

Before	After	Diff

Button / With Icon

228,179 px (65.48%) changed

Before	After	Diff

Button / Icon Only

446,378 px (78.28%) changed

Before	After	Diff

Button / Loading State

209,590 px (63.84%) changed

Before	After	Diff

Button / Disabled State

209,437 px (63.79%) changed

Before	After	Diff

Select (Open)

0 px (0%) changed

Before	After	Diff

1 screenshot(s) unchanged

• Dialog (Open)

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Generated by Kumo Visual Regression