Other changes include:
* Codebase: move JSON parsing logic from config.c/h to nxdt_json.c/h.
* Codebase: replace all calls to localtime() with localtime_r() to guarantee thread-safety.
* Codebase: updated todo.txt.
* utils: implement utilsParseGitHubReleaseJsonData(), utilsFreeGitHubReleaseJsonData(), utilsGetApplicationUpdatedState() and utilsGetApplicationUpdatedState().
* utils: add extra logic to move the application's NRO to its proper path if the launch path isn't the right one (commented out at this moment).
* utils: add extra logic to replace the application's NRO at exit (commented out at this moment).
* defines: add DEVOPTAB_SDMC_DEVICE and tweak GitHub URL macros.
* DownloadTask: set percentage to 0 if the download size is unknown.
* DownloadTask: fix ETA string formatting.
* OptionsTab: repurpose OptionsTabUpdateFileDialogContent into OptionsTabUpdateProgress.
* OptionsTab: implement OptionsTabUpdateApplicationFrame.
* RootView: move date formatting into the static GetFormattedDateString() method.
* Makefile: use _GNU_SOURCE as part of CFLAGS to use strptime().
* Thread-safe.
* Provides getter/setter functions for the data types used by nxdumptool's configuration.
* Each setter function writes the modified JSON configuration back to the SD card.
* Configuration is validated on interface initialization. If validation fails, a default JSON template is loaded from the application's RomFS and written back to the SD card.
Other changes:
* Implement directory creation.
* Moved more preprocessor definitions to defines.h.
* Replaced strtok() calls throughout the code with strtok_r() to guarantee thread-safety.
* Rewrote mutex handling throughout the code to use a small, macro-based scoped lock implementation.
* Removed extern variables from common.h - launch path management is now completely handled in utils.c.
* Updated NpdmSystemCallId_Count to reflect changes introduced in 12.0.0.
* Added NcaMainSignatureKeyGeneration enum.
* NCA main signature moduli are now retrieved from FS .rodata at runtime.
* Simplified lock management in usb.c by using a single global mutex with scoped locks instead of three different r/w locks.
* Updated FatFs to R0.14b.
* Enabled 64-bit LBA support in FatFs to potentially support custom eMMC replacements / resized USER partitions in the future.
* Updated LZ4 to v1.9.3.
* Fixed typos.
* USB gamecard dumper PoC now only dumps the Initial Data area.
* Updated to-do list.
* Remove references to the secondary Nintendo Extended BFTTF because it's identical to the first one.
* Use format attribute in functions that need it (and fixed errors I made in the past).
