fix: fixes from review

Author: rpenido

src/library-authoring/common/context/ComponentPickerContext.tsx

@@ -8,7 +8,7 @@ import {
 
 export interface SelectedComponent {
   usageKey: string;
-  blockType?: string;
+  blockType: string;
 }
 
 export type ComponentSelectedEvent = (selectedComponent: SelectedComponent) => void;