Implement a mechanism to overload kcContext

src/lib/components/Error.tsx

@@ -1,8 +1,6 @@
-
 import { memo } from "react";
 import { Template } from "./Template";
 import type { KcProps } from "./KcProps";
-import { assert } from "../tools/assert";
 import type { KcContextBase } from "../getKcContext/KcContextBase";
 import { useKcMessage } from "../i18n/useKcMessage";
 
@@ -10,8 +8,6 @@ export const Error = memo(({ kcContext, ...props }: { kcContext: KcContextBase.E
 
     const { msg } = useKcMessage();
 
-    assert(kcContext.message !== undefined);
-
     const { message, client } = kcContext;
 
     return (