No code changes, fixed various typos.

Applied patch by snowleopard2 fixing typos in interface/. Extended the fixes throughout trunk.

Closes #13076.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67384 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/wx/gbsizer.h

@@ -217,7 +217,7 @@ public:
 
     The wxGBSizerItem class is used by the wxGridBagSizer for tracking the
     items in the sizer. It adds grid position and spanning information to the
-    normal wxSizerItem by adding wxGBPosition and wxGBSpan attrbibutes. Most of
+    normal wxSizerItem by adding wxGBPosition and wxGBSpan attributes. Most of
     the time you will not need to use a wxGBSizerItem directly in your code,
     but there are a couple of cases where it is handy.
 
@@ -268,7 +268,7 @@ public:
     //@}
 
     /**
-        Returns @true if this item and the @a other item instersect.
+        Returns @true if this item and the @a other item intersect.
     */
     bool Intersects(const wxGBSizerItem& other);
     /**