Also fixes:
- forcing the annotation scope to "full schematic" when run
as a prerequisite to Generate Netlist.
- a long-standing bug where displaying extra items in a dialog
would mess up the height of the HTML_REPORT_PANEL (becasue
we were setting the html window's height rather than its
parent flexgrid.
- initializing the annotation radio buttons to safe values
(full schematic and keep existing)
Fixes: lp:1750062
* https://bugs.launchpad.net/kicad/+bug/1750062
Improve dialog layout and fix UI policy issues with all of the dialog
boxes in the common, 3D viewer, CvPcb, and Eeschema code paths.
Updated the use of component to symbol.