Also cleans up the dialog a bit.
Also changes the workings of NormalizePath to return the input if
it couldn't be shortened which saves open coding that behaviour in
all its callers.
Fixes https://gitlab.com/kicad/code/kicad/issues/9036
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.
because under Linux and wxWidgets 2.9, wxStaticBoxSizer are very ugly (text not readable in this dialog)
(Does not happen with wxWidgets 2.8)
Eeschema hotkeys: remove duplicate keys in key editor.
Eeschema: one string with a bad char (\a, not useable in internationalized strings).
Dialog_page_settings: use not translated strings in code, so strings can be freely translated for the UI.
(Initial code was not working with existing translations)
Update 2 icons.
sizes. Tested with postscript output only. Required minor file format changes
to reflect the "portrait" setting. common/dialogs/dialog_page_settings.cpp
uses a checkbox but its name is "Landscape", which is inverted from portrait,
but since it is the more common choice, I used that rather than portrait.
The tooltip for that checkbox makes it clear. No portrait mode is supported
for "User" paper size.