[temp.variadic] Consistently order template parameter kinds (#7796)

Author: lprv

source/templates.tex

@@ -3247,14 +3247,14 @@
 if the pack is a template parameter pack, the element is
 \begin{itemize}
 \item
-an \grammarterm{id-expression} for a constant template parameter pack,
+a \grammarterm{typedef-name} for a type template parameter pack,
 \item
-a \grammarterm{typedef-name} for a type template parameter pack, or
+an \grammarterm{id-expression} for a constant template parameter pack, or
 \item
 a \grammarterm{template-name} for a template template parameter pack
 \end{itemize}
 designating the $i^\text{th}$ corresponding
-type, template, or constant template argument;
+type, constant, or template template argument;
 
 \item
 if the pack is a function parameter pack, the element is an