iOS dictation language selector almost invisible in Standard Notes #4190

Describe the bug
When using voice dictation in the Standard Notes iOS app, the native iOS dictation language selector bubble is almost invisible because its background color appears to be the same as the Standard Notes editor background (white).
This makes it very difficult to see and select the dictation language.
The same dictation feature appears correctly in Apple's built-in apps.

To Reproduce
Steps to reproduce the behavior:

1. Open Standard Notes on an iPhone.
2. Open or create a note.
3. Tap into the text editor to bring up the keyboard.
4. Start voice dictation using the microphone button on the iOS keyboard.
5. Open the dictation language selector (if multiple dictation languages are enabled).
6. Observe the appearance of the language selector bubble.

Expected behavior
The iOS dictation language selector bubble should have sufficient contrast against the Standard Notes background and be clearly visible, similar to its appearance in Apple's built-in Notes and Reminders apps.

Screenshots

Smartphone:

• Device: iPhone 16 Pro
• iOS version: 26.6.1
• App version: 3.202.0

Additional context
The issue was not always present. It has been occurring for the past couple of months.