Update title of Save Annotated Source dialogue box

This dialogue's title did not reflect the name of the menu option that
displays it, so it was updated to included "Save Annotated Source".

When a snippet is being displayed the word "Snippet" was removed from
the title. Conversely the word "Category" was retained when displaying
a category.

Author: delphidabbler

Src/USaveSnippetMgr.pas

@@ -92,8 +92,8 @@ implementation
 
 resourcestring
   // Dialog box title
-  sSaveSnippetDlgTitle = 'Save %0:s Snippet';
-  sSaveCategoryDlgTitle = 'Save %0:s Category';
+  sSaveSnippetDlgTitle = 'Save Annotated Source of %0:s';
+  sSaveCategoryDlgTitle = 'Save Annotated Source of %0:s Category';
   // Output document title for snippets and categories
   sDocTitle = '"%0:s" %1:s';
   sCategory = 'category';