Lingering hard-coded paths after #3

[gdevenyi]

I have CAT12 installed at
/opt/quarantine/software/CAT12/12.9/install/cat12

And I prepend to MATLABPATH:
/opt/quarantine/software/CAT12/12.9/install/

Which contains spm_my_defaults.m

global defaults

defaults.tbx.dir{end+1} = fullfile(fileparts(mfilename('fullpath'))) ;

This makes SPM properly find CAT12's toolbox location

However, when I open SPM and try to launch the toolbox:

SPM12: spm_cat12 (vCAT12.9)                        11:03:16 - 18/02/2025
========================================================================
Error using imread>get_full_filename (line 579)
Unable to find file "/opt/quarantine/software/SPM12/r7771/install/spm12/toolbox/cat12/doc/images/CAT_Poster.jpg".

Error in imread (line 372)
        fullname = get_full_filename(filename);

Error in spm_cat12 (line 298)
  h = imshow(imread(Pposter));

Error in cat12 (line 62)
  spm_cat12;

It looks like the changes done to address #3 (I can't find a PR or commit to refer to specifically) did not resolve all path issues, or new ones have snuck in since.