Rename kcContext -> KcContext and improve consistency

stories/login/PageStory.tsx

@@ -0,0 +1,44 @@
+import React from "react";
+import type { KcContext } from "./kcContext";
+import KcApp from "./KcApp";
+import type { DeepPartial } from "../../dist/tools/DeepPartial";
+import { createGetKcContextMock } from "../../dist/login";
+import type { KcContextExtraProperties, KcContextExtraPropertiesPerPage } from "./kcContext";
+
+const kcContextExtraProperties: KcContextExtraProperties = {};
+const kcContextExtraPropertiesPerPage: KcContextExtraPropertiesPerPage = {};
+
+const { getKcContextMock } = createGetKcContextMock({
+    kcContextExtraProperties,
+    kcContextExtraPropertiesPerPage
+});
+
+export function createPageStory<PageId extends KcContext["pageId"]>(params: { pageId: PageId }) {
+    const { pageId } = params;
+
+    function PageStory(props: { kcContext?: DeepPartial<Extract<KcContext, { pageId: PageId }>> }) {
+        const { kcContext: overrides } = props;
+
+        const kcContextMock = getKcContextMock({
+            pageId,
+            overrides
+        });
+
+        return (
+            <React.StrictMode>
+                <KcApp kcContext={kcContextMock} />
+            </React.StrictMode>
+        );
+    }
+
+    return { PageStory };
+}
+
+export const parameters = {
+    viewMode: "story",
+    previewTabs: {
+        "storybook/docs/panel": {
+            hidden: true
+        }
+    }
+};