tgpt 2.0.4

Changed backend

SHA256 hashes of the built binaries:
8e25a2b0f9e645103d0665d23dacc3f3d6b3641dda7b0346edbcd82794eeea5f  tgpt-linux-amd64
e2433b3f91a3754715ff66c9651f7b8879c65adf40c5fa595f14581439421ab2  tgpt-linux-i386
40fd508383331ea8588d277743eb8d9802b2d7484d3fd93eea38a65f40f151b0  tgpt-linux-arm64
04343a6d2f6a2953ab2d2b1a2ca238f84e9d90fd0b48239924e6734fcf2b25f1  tgpt-amd64.exe
96cab039e9e525ccb09b0be75437f1b93394816edd7cd21babea98141f9476df  tgpt-i386.exe
42ebdb0b5946b0f12d539794690a42336f7a5855b2f853f8c73ea795b8d323ec  tgpt-mac-amd64
c90bb7a517908899b7587923ced691fe12938ad820f1c6b0d9167a051e51ae94  tgpt-mac-arm64