In landscape mode, there's a black bar on the front camera

[Qing-Novel]

Prerequisites

Describe the bug
When the software is opened and the screen is displayed in landscape mode, the background color of the light-colored area is black.If your software is made using flutter, you can refer to the issue below to fix this problem.
realth000/tsdm_client#13
Predidit/Kazumi#757 (comment)

To Reproduce

Screenshots and Logs

Please complete the following information:

• Device: huawei mate 60 pro
• OS: aosp12
• Obtainium Version: 1.3.4

Additional context