Fix inversion of Y axis.

Fixes https://gitlab.com/kicad/code/kicad/-/issues/18505

eeschema/dialogs/dialog_lib_edit_pin_table.cpp

@@ -212,7 +212,7 @@ public:
                 break;
 
             case COL_POSY:
-                val = aParentFrame->StringFromValue( -pin->GetPosition().y, true );
+                val = aParentFrame->StringFromValue( pin->GetPosition().y, true );
                 break;
 
             case COL_VISIBLE:
@@ -411,7 +411,7 @@ public:
 
             case COL_POSY:
                 pin->SetPosition( VECTOR2I( pin->GetPosition().x,
-                                            -m_frame->ValueFromString( value ) ) );
+                                            m_frame->ValueFromString( value ) ) );
                 break;
 
             case COL_VISIBLE:

eeschema/dialogs/dialog_pin_properties.cpp

@@ -262,7 +262,7 @@ bool DIALOG_PIN_PROPERTIES::TransferDataToWindow()
     m_textPinName->SetValue( m_pin->GetName() );
     m_nameSize.SetValue( m_pin->GetNameTextSize() );
     m_posX.SetValue( m_origPos.x );
-    m_posY.SetValue( -m_origPos.y );
+    m_posY.SetValue( m_origPos.y );
     m_textPinNumber->SetValue( m_pin->GetNumber() );
     m_numberSize.SetValue( m_pin->GetNumberTextSize() );
     m_pinLength.SetValue( m_pin->GetLength() );
@@ -335,7 +335,7 @@ bool DIALOG_PIN_PROPERTIES::TransferDataFromWindow()
     if( !DIALOG_SHIM::TransferDataFromWindow() )
         return false;
 
-    VECTOR2I newPos( m_posX.GetIntValue(), -m_posY.GetIntValue() );
+    VECTOR2I newPos( m_posX.GetIntValue(), m_posY.GetIntValue() );
 
     const int standard_grid = 50;