Investigate & exclude unnecessary dependencies from the build

[BenHenning]

During the development of #3750 we discovered that we can use maven_install to exclude certain dependencies, and by removing kotlin-reflect we can actually reduce the binary size fairly substantially (>500KB). We should look into kotlin-reflect & all other dependencies to figure out how to minimize the files needed in the final AAB we ship to users (this includes considering resources & assets that can also be removed).