feat: add cr plausible context

frontend/src/component/changeRequest/ChangeRequestContext.tsx

@@ -0,0 +1,15 @@
+import { createContext, useContext } from 'react';
+
+const defaultContext = {
+    willOverwriteStrategyChanges: false,
+    registerWillOverwriteStrategyChanges: () => {},
+};
+
+const ChangeRequestPlausibleContext = createContext(defaultContext);
+
+export const ChangeRequestPlausibleProvider =
+    ChangeRequestPlausibleContext.Provider;
+
+export const useChangeRequestPlausibleContext = (): typeof defaultContext => {
+    return useContext(ChangeRequestPlausibleContext);
+};