Editorial: group and rearrange dialog concepts

Part of #10963.

source

@@ -61876,9 +61876,6 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
 
   <div w-nodev>
 
-  <p>Every <code>dialog</code> element has a <dfn>dialog toggle task tracker</dfn>, which is a
-  <span>toggle task tracker</span> or null, initially null.</p>
-
   <p>To <dfn>queue a dialog toggle event task</dfn> given a <code>dialog</code> element
   <var>element</var>, a string <var>oldState</var>, and a string <var>newState</var>:
 
@@ -62351,9 +62348,20 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
 
   <hr>
 
-  <p>The <code>Document</code> has a <dfn>dialog pointerdown target</dfn>, which is an <span
+  <p>Each <code>Document</code> has a <dfn>dialog pointerdown target</dfn>, which is an <span
   data-x="HTMLDialogElement">HTML dialog element</span> or null, initially null.</p>
 
+  <p>Each <span data-x="html elements">HTML element</span> has a <dfn>previously focused
+  element</dfn> which is null or an element, and it is initially null. When <code
+  data-x="dom-dialog-showModal">showModal()</code> and <code data-x="dom-dialog-show">show()</code>
+  are called, this element is set to the currently <span>focused</span> element before running the
+  <span>dialog focusing steps</span>. Elements with the <code data-x="attr-popover">popover</code>
+  attribute set this element to the currently <span>focused</span> element during the <span
+  data-x="show popover">show popover algorithm</span>.</p>
+
+  <p>Each <code>dialog</code> element has a <dfn>dialog toggle task tracker</dfn>, which is a
+  <span>toggle task tracker</span> or null, initially null.</p>
+
   <p>Each <code>dialog</code> element has a <dfn data-x="dialog-close-watcher">close watcher</dfn>,
   which is a <span>close watcher</span> or null, initially null.</p>
 
@@ -62365,14 +62373,6 @@ interface <dfn interface>HTMLDialogElement</dfn> : <span>HTMLElement</span> {
 
   <p>Each <code>dialog</code> element has an <dfn>is modal</dfn> boolean, initially false.</p>
 
-  <p>Each <span data-x="html elements">HTML element</span> has a <dfn>previously focused
-  element</dfn> which is null or an element, and it is initially null. When <code
-  data-x="dom-dialog-showModal">showModal()</code> and <code data-x="dom-dialog-show">show()</code>
-  are called, this element is set to the currently <span>focused</span> element before running the
-  <span>dialog focusing steps</span>. Elements with the <code data-x="attr-popover">popover</code>
-  attribute set this element to the currently <span>focused</span> element during the <span
-  data-x="show popover">show popover algorithm</span>.</p>
-
   <hr>
 
   </div>