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/settings.rs

@@ -132,16 +132,16 @@ impl CursorType {
     }
 }
 
-/// What a right-click in the drawing area does (AutoCAD SHORTCUTMENU /
+/// What a right-click in the drawing area does (SHORTCUTMENU in commercial solutions /
 /// "Right-click Customization").
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize)]
 pub enum RightClickMode {
-    /// AutoCAD default: a right-click always opens the shortcut menu (Enter /
+    /// The default of commercial solutions: a right-click always opens the shortcut menu (Enter /
     /// Cancel / the command's options while a command runs; Repeat / edit
     /// tools when idle).
     #[default]
     ShortcutMenu,
-    /// AutoCAD "time-sensitive right-click": a quick click is Enter (or
+    /// The "time-sensitive right-click" of commercial solutions: a quick click is Enter (or
     /// repeats the last command when idle); holding the button longer than
     /// `right_click_hold_ms` opens the shortcut menu.
     TimeSensitive,