feat(color): increase RAM allocation to LVGL for Lua scripts with many images

[philmoz]

As there is plenty of RAM available on color radios, this PR increases the memory allocation to LVGL.
Mainly for Lua scripts that want to use images.

[pfeerick]

Isn't doubling the amount of ram "allocated" to LVGL in simulator going to cause issues down the track with scripts running on simulator but not on the radio? We want the simulator to behave as much like the radio as we can make it, after all.

[philmoz]

Isn't doubling the amount of ram "allocated" to LVGL in simulator going to cause issues down the track with scripts running on simulator but not on the radio? We want the simulator to behave as much like the radio as we can make it, after all.

Difficult to match since simulator runs on 64bit CPU's so memory allocation differs. @offer-shmuely ran into an issue where a script would run on the radio; but not in the simulator.

[offer-shmuely]

Great.
I like the sim to represent the tx as close as possible
Now it was the opposite,
Also, I like to ask a better log error, both for the sim, with the name of the faulty image.
And maybe even on the image are itself, some kind of mark or text with "no mem"