QR code is inverted in dark mode

[matejcik]

Describe the bug
When the app is in dark mode, the QR code is shown with inverted colors.
This is non-standard and while some QR scanners can deal, not all of them, because they expect dark-on-light scheme.

Info:

• Suite Version: web 24.6.2

How to reproduce

1. enable dark mode
2. go to a Receive tab
3. show an address + QR code

Expected behavior
Dark-mode QR code should not be inverted. It should be the same as light-mode QR code, surrounded by at least one cell wide white border.

Screenshots

Additional context
reported on the forum: https://forum.trezor.io/t/qr-code-cannot-be-scanned-in-dark-mode-both-trezor-suite-desktop-and-web-based-are-affected/18111/2

[bosomt]

QA OK

Info:

• Suite version: desktop 24.8.1 (b8c7e5e)
• Browser: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) TrezorSuite/24.8.1 Chrome/118.0.5993.159 Electron/27.3.8 Safari/537.36
• OS: MacIntel
• Screen: 1512x982
• Device: Trezor T2T1 2.8.1 regular (revision 632b9561559b7ab6824bb7eeac072874e07b7b82)
• Transport: BridgeTransport 2.0.33