Design: the card says which tool it is, and "Dress-up" stops being a word we use

Mirror of snaporca 3677937964 (DesignPanel.cpp applied as a patch; parity 30, shared
files byte-identical).

The card header read "Fillet 1" over a chamfer because the offer's Chamfer address opened
the tool before setting the type, and open_tool() titles the card from that combo. Choose
first, then open.

"Dress-up" removed from the offer row (-> "Fillet / chamfer"), the card field (-> "Type",
it was a label reading Dress-up whose value said Chamfer) and the toolbar tooltip.

Verified on the rig: header "Chamfer 1", field "Type: Chamfer", row "Fillet / chamfer".

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LyRwbuq6fjn3VV9U9UvhBM

src/slic3r/GUI/DesignOffer.hpp

@@ -70,7 +70,7 @@ static const char* const kOfferRowNames[] = {
     "Create",
     "Add material",
     "Remove",
-    "Dress-up",
+    "Fillet / chamfer",
     "Repeat",
     "Transform",
     "Reference",