Reduce ghosting in E-ink devices

**Is your feature request related to a problem? Please describe.**
I just go a huawei matepad paper, which is a mix of an e-ink reader and an android tablet, meaning I can install ankidroid on it and use it for hours with its good battery life, however, the screen does not refresh on card flips or on going to the next card, so (typical of e-ink displays) there is a sort of burn in/ghosting until the screen does a full refresh. The natively installed apps, and firefox, trigger a screen refresh when you go to a different content view, which prevents this, but ankidroid does not, meaning that the previous card is still sort of visible.

**Describe the solution you'd like**
An option under advanced options/workarounds to get ankidroid to trigger a full refresh on card flips and next card.

**Describe alternatives you've considered**
I have to manually trigger a refresh from the system menu which is a bit annoying.

**Additional context**
There's some "safe mode" under advanced options that says "e-ink devices might require this" but I have observed zero difference with it on.