ux: move "Color-coded icons" toggle into the Display pane

The toggle lived under Advanced, making it hard to find next to the other
menu-bar appearance settings. Move it into Display ▸ Menu Bar (default stays
on) so the disable option sits where users look for menu-bar icon options.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: johnlarkin1

Sources/CodexBar/PreferencesAdvancedPane.swift

@@ -64,10 +64,6 @@ struct AdvancedPane: View {
                         title: L("surprise_me_title"),
                         subtitle: L("surprise_me_subtitle"),
                         binding: self.$settings.randomBlinkEnabled)
-                    PreferenceToggleRow(
-                        title: "Color-coded icons",
-                        subtitle: "Tint menu bar icons green, yellow, or red based on session usage.",
-                        binding: self.$settings.colorCodedIcons)
                     PreferenceToggleRow(
                         title: L("weekly_limit_confetti_title"),
                         subtitle: L("weekly_limit_confetti_subtitle"),

Sources/CodexBar/PreferencesDisplayPane.swift

@@ -37,6 +37,10 @@ struct DisplayPane: View {
                         binding: self.$settings.menuBarShowsHighestUsage)
                         .disabled(!self.settings.mergeIcons)
                         .opacity(self.settings.mergeIcons ? 1 : 0.5)
+                    PreferenceToggleRow(
+                        title: "Color-coded icons",
+                        subtitle: "Tint menu bar icons green, yellow, or red based on session usage.",
+                        binding: self.$settings.colorCodedIcons)
                     PreferenceToggleRow(
                         title: L("menu_bar_shows_percent_title"),
                         subtitle: L("menu_bar_shows_percent_subtitle"),