Default sizes for edit frames in case prefs get deleted.

Fixes: lp:1807676
* https://bugs.launchpad.net/kicad/+bug/1807676

eeschema/libedit/lib_edit_frame.cpp

@@ -205,6 +205,7 @@ LIB_EDIT_FRAME::LIB_EDIT_FRAME( KIWAY* aKiway, wxWindow* aParent ) :
     m_syncPinEdit         = false;
     m_repeatPinStep = DEFAULT_REPEAT_OFFSET_PIN;
     SetShowElectricalType( true );
+    m_FrameSize = ConvertDialogToPixels( wxSize( 500, 350 ) );    // default in case of no prefs
 
     m_my_part = NULL;
     m_tempCopyComponent = NULL;

eeschema/sch_edit_frame.cpp

@@ -386,6 +386,7 @@ SCH_EDIT_FRAME::SCH_EDIT_FRAME( KIWAY* aKiway, wxWindow* aParent ):
     m_findReplaceStatus = new wxString( wxEmptyString );
     m_undoItem = NULL;
     m_hasAutoSave = true;
+    m_FrameSize = ConvertDialogToPixels( wxSize( 500, 350 ) );    // default in case of no prefs
 
     m_toolManager = new TOOL_MANAGER;
 

pcbnew/footprint_edit_frame.cpp

@@ -220,6 +220,7 @@ FOOTPRINT_EDIT_FRAME::FOOTPRINT_EDIT_FRAME( KIWAY* aKiway, wxWindow* aParent,
     m_showAxis = true;                   // true to show X and Y axis on screen
     m_showGridAxis = true;               // show the grid origin axis
     m_hotkeysDescrList = g_Module_Editor_Hotkeys_Descr;
+    m_FrameSize = ConvertDialogToPixels( wxSize( 500, 350 ) );    // default in case of no prefs
 
     // Give an icon
     wxIcon icon;

pcbnew/pcb_edit_frame.cpp

@@ -305,6 +305,7 @@ PCB_EDIT_FRAME::PCB_EDIT_FRAME( KIWAY* aKiway, wxWindow* aParent ) :
     m_hasAutoSave = true;
     m_microWaveToolBar = NULL;
     m_Layers = nullptr;
+    m_FrameSize = ConvertDialogToPixels( wxSize( 500, 350 ) );    // default in case of no prefs
 
     // We don't know what state board was in when it was lasat saved, so we have to
     // assume dirty