Headless alignment export with structure annotations doesn't include secondary structure and temperature factor

Follow on from JAL-629 - giving a separate issue so we can report as known issue and resolve as a patch release if need be. Marked as blocker since this is a required capability for nf-core/proteinfold integration.

The following command line creates an image with plddt, secondary structure, and PAE annotation:
java -jar build/libs/jalview-all-TEST-j11.jar --open examples/uniref50.fa --structure [seqid=FER1_SPIOL,tempfac=plddt,showssannotations,structureviewer=jmol]examples/AlphaFold/AF-P00221-F1-model_v4.pdb --paematrix examples/AlphaFold/AF-P00221-F1-predicted_aligned_error_v4.json --image=test-al-pae-ss.png --overwrite --gui

However, if --gui is removed, none of the 3d structure derived data are included in the exported figure.