DIALOG_EDIT_ONE_FIELD: fix a non resizable widgets and fix a compil warning.

Fixes #8877
https://gitlab.com/kicad/code/kicad/issues/8877

eeschema/dialogs/dialog_edit_one_field.cpp

@@ -143,6 +143,7 @@ void DIALOG_EDIT_ONE_FIELD::init()
     if( m_StyledTextCtrl->IsShown() )
     {
         wxSize maxSize = m_StyledTextCtrl->GetSize();
+        maxSize.x = -1;     // Do not fix the max width
         maxSize.y = m_xPosCtrl->GetSize().y;
         m_StyledTextCtrl->SetMaxSize( maxSize );
         m_StyledTextCtrl->SetUseVerticalScrollBar( false );

eeschema/sch_plugins/altium/sch_altium_plugin.cpp

@@ -742,7 +742,7 @@ void SCH_ALTIUM_PLUGIN::ParsePin( const std::map<wxString, wxString>& aPropertie
 void SetTextPositioning( EDA_TEXT* text, ASCH_LABEL_JUSTIFICATION justification, ASCH_RECORD_ORIENTATION orientation )
 {
     int    vjustify, hjustify;
-    double angle;
+    double angle = TEXT_ANGLE_HORIZ;
 
     switch( justification )
     {