Graphical panic messages do not appear in DoubleBuffered render mode

[doinkythederp]

Bug Description

After using Screen::set_render_mode to set the render mode to DoubleBuffered, graphical panic messages will not appear and it will appear as if the program is frozen upon a panic.

Code to reproduce

#![no_std]
#![no_main]

use vexide::prelude::*;

#[vexide::main]
async fn main(mut p: Peripherals) {
    p.screen.set_render_mode(vexide::devices::screen::RenderMode::DoubleBuffered);
    panic!("something failed");
}

Expected vs. actual behavior

The panic message should appear on screen in a red box, but instead nothing appears at all.

Additional information

• vexide version (see Cargo.toml): 259590b0e06c60b0662d5e871a25abbea4ff4984
• I have tested this issue on the latest development release.
• I would be willing to implement a fix for this issue.
• Priority this issue should have (low/med/high): med
• This can be fixed by calling vexDisplayRender in the panic handler.