[Suggestion] Add the infomation for the latest keyboard cache location in MSTG-STORAGE-5

[sohsatoh]

The "Finding Sensitive Data in the Keyboard Cache" section of MSTG-STORAGE-5 describes the following.

Several options for simplifying keyboard input are available to users. These options include autocorrection and spell checking. cached by default, in /private/var/mobile/Library/Keyboard/dynamic-text.dat.

However, in iOS14 and iOS16, I confirmed that the keyboard cache is stored in /private/var/mobile/Library/Keyboard/<lang>-dynamic.lm/dynamic-lexicon.dat, and the information written in MSTG-STORAGE-5 is already outdated.

[cpholguera]

Covered now in #2368

Thank you @sohsatoh!