AppKit: Maintain proper line height for overflowing attachments in CPTypesetter

When text attachments (such as tables or wide images) exceeded container width,
`CPTypesetter` correctly forced a line break following the attachment but
erroneously reverted the line's height and baseline to pre-attachment metrics.
Consequently, oversized attachments rendered on the baseline of preceding text,
causing them to overlap and obscure content above them in narrowed viewports.

* AppKit/CPTextView/CPTypesetter.j:
  - Update line layout logic to incorporate attachment dimensions into line height
    and baseline calculations when line breaks encompass overflowing attachments.

* Tests/Manual/TextEditor/WORKLIST.md:
  - Mark wide/overflowing table layout tests as completed.

Attachments and tables wider than the text container now correctly occupy their own distinct lines without overlapping preceding content.

AppKit/CPTextView/CPTypesetter.j

@@ -510,6 +510,16 @@ var _CPTypesetterDecimalSeparator = function()
                 if (viewSize.height > _lineHeight)
                     _lineHeight = viewSize.height - descent + leading;
 
+                // An attachment wider than the container stays on the line it overflows, so a break
+                // there keeps the line's height and baseline with the attachment's size applied.
+                // Otherwise the attachment would be placed on the baseline of the text before it,
+                // and drawn above its line.
+                if (CPMaxRange(wrapRange) === CPMaxRange(lineRange))
+                {
+                    wrapRange._height = _lineHeight;
+                    wrapRange._base = _lineBase;
+                }
+
                 ascent = viewSize.height;
                 break;
             }