[BUG] White on white text in the demo when using dark mode

[JiHa-Kim]

Describe the bug <—A clear and concise description of what the bug is.—> When you turn on dark mode in the demo page and get redirected from the payment page, the text turns white but the background remains white, therefore invisible.

To Reproduce Steps to reproduce the behavior: 0. Go to the demo page with the AI scheduler app

1. Turn on dark mode
2. Use the test payment method
3. When redirecting, the page will show white on white. See image below.

Expected behavior <—A clear and concise description of what you expected to happen.—> I expected the background to adjust its color for the dark theme.

Screenshots If applicable, add screenshots to help explain your problem.

https://media.discordapp.net/attachments/812664118887841813/1204252580788703242/image.png?ex=65d40e9d&is=65c1999d&hm=99d31c9d2e85c1721fc01eaeccb6c724c50af280a929ecad63bd5c84bc1cfeda&

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows 11
• Browser [e.g. chrome, safari] Microsoft Edge
• Version [e.g. 22] 120.0.2210.150

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Add any other context about the problem here.

[martinovicdev]

Feel free to assign me to this issue, I will fix it.