"formsframe" widget was a grid that previously contained the forms
options only, but after restructuring the "forms_frame" is actually
a frame that contains all the forms option and checkbox to enable
writing of the forms. A different "forms_options_grid" is used to
contain only the form options.
This was changed in the .ui file, but it was not changed correctly
in the code (only "formsframe" was renamed to "forms_frame").
The change fixes the code to use "forms_options_grid" instead of
"forms_frame" and renames the variables so now the correct widget
is used.
Change-Id: I15f967575d1a53ab9545e68867c48abefbc6b0dd
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/184910
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
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