Changes
- Fix build and dependency issues:
- Increase compiler constexpr limits to resolve build failures with large static maps on Clang/MSVC. termux/termux-packages#30350
- Fix target collision and fetch logic for LunaSVG dependency during CMake configuration.
- Add fallback to automatically download and build a suitable version of FreeType (min 2.13.2 with OTSVG support) via CMake if the system package is missing or outdated.