Changes the formatting of the key values at `Code Type 0xC4: Begin Extended Keypress Conditional Block` in cheats.md so that it is perfectly clear that those values are 64-bit values rather than 32-bit or 28-bit like `Code Type 0x8: Begin Keypress Conditional Block`, and also for the fact that the formatting matches the rest of the document and is thus cleaner.
Starting in 20.0.0, the browser needs more applet memory to function, so we can't steal as much any more.
Thus, we now steal 14 MB on 20.0.0+ instead of 40MB.
However, since this reduces memory available for custom system modules, we are adjusting to compensate.
ams.mitm's heap size has been reduced from 32MB to 12MB (recovering 20MB).
In addition, fs.mitm now uses a new mechanism for stealing memory from the applet pool while romfs is being built.
On net, we are compromising:
* Custom sysmodules lose memory available to them.
On 19.0.0/AMS 1.8.0, there was 30 MB available for custom sysmodules.
Stealing 14 MB instead of 40 MB, we lose 26 MB of that. Reducing ams.mitm's usage will gain us back 20.
Nintendo also appears to...use 4 extra MB, in 20.0.0, from my test homebrew.
So on 20.0.0/AMS 1.9.0, there should be 20 MB available for custom sysmodules.
On the bright side, on <20.0.0/AMS 1.9.0, I guess there will be 50 MB available for custom sysmodules now?
* totk mods will lose the ability to...put every file in the romfs on sd card. There will be some unknown maximum filecount for totk mods.
On the bright side, implementing the transient memory stealing should improve compatibility for some mods which strictly add files?
Also, fix a few very embarassing mistakes in kernel ldr:
* We have been mapping the page table region RWX for a few years now, accidentally.
* My attempt at making initial page tables not use bit 58 was broken in multiple ways.
* dmnt_extension
* update type 8 extension
* clearify that bit 27 does not correspond to a button
* update cheat.md with new code type 0xC4
* implement code type 0xC4
* Add type 1 extension
* remove C0Tcr6Ma aaaaaaaa VVVVVVVV (VVVVVVVV)
* Type 9 extension for floating point math
* updated according to review
