bug: saved file extension is not set automatically

[fourier]

Lectrote [1.4.3] on Linux. When I run an z3 game (zork i) and try to use the save command, the dialog pops up allowing me to provide a file name. I type i.e. begin and click on save (the dialog suggest file type to be Glk save file). File saved without extension.
When I later type restore to restore from the file, I cannot point to this saved file as it is filtered out from the dialog.
Upon experimenting and googling I've found out that the file extension should be .glksave, but it was not appended automatically.

Suggestion: to automatically append .glksave to the file names when doing the save command.

[erkyrath]

I believe this comes down to the way the file dialog is implemented in electron.