fix(dark-theme): PlayStateIcon glyph beats .dd-accent-icon; GasLampLit self-colored frame

PlayStateIcon.razor.css adds a .mud-icon-root rule !important so the play chip always shows
navy on moss-green in dark. GasLampLit frame path changed from currentColor to #2A5C4F;
dead nav dark rule removed.

DeepDrftPublic/wwwroot/styles/deepdrft-styles.css

@@ -809,13 +809,10 @@ body:has(.waveform-visualizer-control-overlay) {
     color: var(--deepdrft-navy) !important;
 }
 
-/* Theme-divergent affordance — gas-lamp dark-mode toggle.
-   Uses Color.Inherit, so in LIGHT it inherits the nav text colour (the contract to keep).
-   In dark theme it goes green-accent to match the convention. Scoped to .dd-nav-actions
-   (covers both desktop and mobile nav, which both render the gas-lamp there); dark-only. */
-.deepdrft-theme-dark .dd-nav-actions .mud-icon-button {
-    color: var(--deepdrft-green-accent);
-}
+/* Gas-lamp dark-mode toggle: the frame now carries an explicit #2A5C4F fill in its SVG
+   (DDIcons.GasLampLit), so no CSS colour override is needed here in dark. The nav rule
+   that previously set green-accent on the MudIconButton has been removed — it was the
+   only .mud-icon-button in .dd-nav-actions and is now dead. */
 
 /* =============================================================================
    RELEASE DESCRIPTION BLURB