ui: neutral wording in code and help text; keywords first in the command menu

Comments and the Options help text describe the behaviour of commercial
solutions without naming any product. The command menu puts the command's
keywords directly under Enter / Cancel, with Recent Input and Snap
Overrides below them, so the choices that change from step to step are the
closest to the pointer.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/app/update/viewport.rs

@@ -6237,7 +6237,7 @@ properties={:.1}ms picked={}",
 
     /// Grip-menu Copy: leave the originals where they were and add the
     /// edited shapes as new entities, then re-arm the same grip at its
-    /// origin so the next placement makes another copy (AutoCAD grip Copy).
+    /// origin so the next placement makes another copy (grip Copy, as in commercial solutions).
     fn commit_active_grip_edit_as_copy(&mut self, grip: GripEdit) -> Task<Message> {
         let i = self.active_tab;
         let handles = std::mem::take(&mut self.grip_preview_handles);