Document Sketcher constraint rendering

[newmattock]

Summary:

• adds a FreeCAD 1.1 release-note entry for Gui: Render constraint text, arrowheads and constraint icons above geometry lines FreeCAD/FreeCAD#26703

Related bounty or issue:

• Refs Sketcher Workbench: Adding Missing Information #94

What changed:

• documents that Sketcher constraint text, arrowheads, and icons render above geometry lines while constraint lines remain behind geometry
• keeps the update limited to the root wiki/Release_notes_1.1.wikitext page

Validation:

• git diff --check -- wiki/Release_notes_1.1.wikitext

Notes:

• Translation files were intentionally not modified.
• This is a focused release-note addition and does not claim the broader Sketcher documentation issue is complete.

[Reqrefusion]

Backported 1.1. Adding it to 1.2 doesn't seem logical.

[newmattock]

Thanks, that makes sense. I moved this entry from Release_notes_1.2.wikitext to Release_notes_1.1.wikitext, since FreeCAD/FreeCAD#26703 is milestone 1.1 and has the backport releases/FreeCAD-1-1 label. I also ran git diff --check after the edit.