Additional bug fixes

Additional bug fixes:

v1.0.4 (November 29, 2024):

• Added ability to open a file from the command line;
• Fixed an issue with the char.rom and the compilers when the current working directory is not the one of the executable (for e.g. when the extension .gmk64 is associated to the executable and a .gmk64 file is double clicked);
• Allow scaling of the UI below 100% and up to 200% (see File > Settings... menu');
• Fixed regression that doesn't show the C++ compiler error messages;