gnucash stable: Multiple changes pushed

[Christopher Lam]

Updated	 via  https://github.com/Gnucash/gnucash/commit/2dfdb0ba (commit)
	 via  https://github.com/Gnucash/gnucash/commit/42b4ed6a (commit)
	from  https://github.com/Gnucash/gnucash/commit/dde10464 (commit)



commit 2dfdb0bac3b67fde04aa2114db9f0503a70a8b9d
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Mon Nov 3 19:09:48 2025 +0800

    [gnc-file.c] non-dbi file dialog filters .gnucash .xac files

commit 42b4ed6a1e5c8a7d6470865b3f21437cb0664874
Author: Christopher Lam <christopher.lck at gmail.com>
Date:   Mon Nov 3 19:09:16 2025 +0800

    [gnc-file.c] move datafile filter to gnc-file.c
    
    effectively reverts 6c5f9052602d8e01cbf2 and reinstate in gnc-file.c,
    because the datafile filter is useful for non-dbi file dialog too



Summary of changes:
 gnucash/gnome-utils/dialog-file-access.c | 37 +------------
 gnucash/gnome-utils/gnc-file.c           | 93 +++++++++++++++++++++-----------
 gnucash/gnome-utils/gnc-file.h           |  4 ++
 3 files changed, 69 insertions(+), 65 deletions(-)