feat: Blake3, CRC32, Adler32, progress bar, cleanup

[GeopJr]

fix: #102
fix: #176

• Adds Blake3 (shard), CRC32 (std), Adler32 (std)
• Dynamically creates the rows
• Use symbols for the hash types
• Use named tuple for the functions (type: digest)
• Move away from openssl and instead use digest directly
• Create new digest instances for every calculation (fixes crash due to finalizing > 1)
• Support for opening multiple files from the file picker (opens new windows)
• Shows loading screen when opening with file

TODO:

• [Request]: Disabling/enabling hash functions #166
• Update flatpak config