fix(accounts): PQ-010 QA visual fixes for Quantum add-account [PERA-4483]

[fmsouza]

Description

Addresses the QA feedback on the Add Quantum Account entry (Add an account screen) reported on PERA-4483:

• "NEW" badge color — Added a solid-mint new variant to PWBadge using the Figma tokens wallet4 (#8BF4DB) fill + wallet4Icon (#136880) text, and switched the quantum badge to it. The previous positive variant rendered a faint translucent teal that didn't match Figma. The shared positive variant (used in ~20 places) is left untouched.
• "Learn more" link color — Switched the PanelButton learn-more link from variant='link' to variant='linkPositive'. The link variant resolves to linkPrimary, which is the brand yellow in dark mode; linkPositive keeps the teal link tone in both themes (#1F8E9D light / turquoise[600] dark), per the updated Figma.
• Title wrapping — "Add Quantum Account" wrapped to a second line on high-density devices (Galaxy S25) because the scaled title + inline badge exceeded the row width. The title now stays on one line (truncate) when a badge is present; other panel rows are unaffected.

Related Issues

• Fixes https://algorandfoundation.atlassian.net/browse/PERA-4483

Checklist

• Have you tested your changes locally?
• Have you reviewed the code for any potential issues?
• Have you documented any necessary changes in the project's documentation?
• Have you added any necessary tests for your changes?
• Have you updated any relevant dependencies?

Additional Notes

• Only the quantum row currently uses badge/learnMore, so these PanelButton changes are effectively scoped to it — but they apply generically (any future badged row keeps its title on one line; any learn-more link is teal). Happy to make either opt-in via a prop if preferred.
• The title fix uses ellipsis (worst case Add Quantum Acc…). If keeping the full text on one line is preferred, adjustsFontSizeToFit is a drop-in alternative.
• Verified: PWBadge 3/3, PanelButton 8/8, useAddAccountScreen 43/43, quantum-create integration 1/1; format/copyright/i18n/secret checks clean.

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