Prepare for webOS & Tizen support

src/utils/bx-flags.ts

@@ -9,6 +9,8 @@ type BxFlags = Partial<{
 
     ForceNativeMkbTitles: string[];
     FeatureGates: {[key: string]: boolean} | null,
+
+    ScriptUi: 'default' | 'tv',
 }>
 
 // Setup flags
@@ -23,6 +25,8 @@ const DEFAULT_FLAGS: BxFlags = {
 
     ForceNativeMkbTitles: [],
     FeatureGates: null,
+
+    ScriptUi: 'default',
 }
 
 export const BX_FLAGS: BxFlags = Object.assign(DEFAULT_FLAGS, window.BX_FLAGS || {});