Minimized Output on Export

A very small development update this time, because the main reason for pushing another one is that the last two versions failed to launch on macOS because they were not statically linked to the Zstandard library. I've personally confirmed that this one launched fine!

One new feature did make it in though. It is now possible to configure exports to be minimized, which in this case means to leave out all unnecessary whitespace from the exported file. This feature is implemented for the TMX/TSX, JSON and Lua formats. It's not often needed, but it can help reduce deployment size and loading times.

Changelog

• Added option to minimize output on export (#944)
• Tile Stamps view: Make it possible to bind shortcuts to create stamps
• macOS: Fixed libzstd to be linked statically (#2174)