Cleanup logic for asModal to make it a little easier to use dynamically

resources/scripts/context/ModalContext.ts

@@ -1,13 +1,14 @@
 import React from 'react';
+import { SettableModalProps } from '@/hoc/asModal';
 
 export interface ModalContextValues {
     dismiss: () => void;
-    toggleSpinner: (visible?: boolean) => void;
+    setPropOverrides: (value: ((current: Readonly<Partial<SettableModalProps>>) => Partial<SettableModalProps>) | Partial<SettableModalProps> | null) => void;
 }
 
 const ModalContext = React.createContext<ModalContextValues>({
     dismiss: () => null,
-    toggleSpinner: () => null,
+    setPropOverrides: () => null,
 });
 
 ModalContext.displayName = 'ModalContext';