PRECOGx

1. Shows AF complexes
2. Fixed the PDB numbering issue (e.g. MC1R D294H)
3. Halts submission when the input widget is empty (i.e. input is blank)
4. The Coupling probabilities table updates if you change tick marks
5. Updated predicted contact pairs
6. Added GPCR classes memberships to the PCA panel
7. Added all the Transformer layers in the PCA panel