test: remove unnecessary BlockContext wrapper from BottomBar CurrentTask test

Remove legacy BlockContext.Provider wrapper that is no longer needed.

CurrentTask component was migrated to use cn() helper and no longer uses
BlockContext internally, so the context wrapper in tests is unnecessary.

Changes:
- Removed BlockContext import
- Removed all BlockContext.Provider wrappers around component renders
- Tests still pass - component doesn't consume the context

Completes test cleanup for BEM migration.

Author: luarmr

web/libs/editor/src/components/BottomBar/__tests__/CurrentTask.test.tsx

@@ -1,6 +1,5 @@
 import { render } from "@testing-library/react";
 import { CurrentTask } from "../CurrentTask";
-import { BlockContext, cn } from "../../../utils/bem.ts";
 import { FF_LEAP_1173 } from "../../../utils/feature-flags";
 import { mockFF } from "../../../../__mocks__/global";
 
@@ -53,11 +52,7 @@ describe("CurrentTask", () => {
       ["skip", "postpone", "topbar:prevnext", "topbar:task-counter"].includes(interfaceName),
     );
 
-    const { rerender, getByTestId } = render(
-      <BlockContext.Provider value={cn("block-name")}>
-        <CurrentTask store={store} />
-      </BlockContext.Provider>,
-    );
+    const { rerender, getByTestId } = render(<CurrentTask store={store} />);
 
     expect(getByTestId("next-task").disabled).toBe(false);
 
@@ -71,11 +66,7 @@ describe("CurrentTask", () => {
         ),
     };
 
-    rerender(
-      <BlockContext.Provider value={cn("block-name")}>
-        <CurrentTask store={store} />
-      </BlockContext.Provider>,
-    );
+    rerender(<CurrentTask store={store} />);
 
     expect(getByTestId("next-task").disabled).toBe(true);
 
@@ -89,11 +80,7 @@ describe("CurrentTask", () => {
         ),
     };
 
-    rerender(
-      <BlockContext.Provider value={cn("block-name")}>
-        <CurrentTask store={store} />
-      </BlockContext.Provider>,
-    );
+    rerender(<CurrentTask store={store} />);
 
     expect(getByTestId("next-task").disabled).toBe(true);
 
@@ -107,11 +94,7 @@ describe("CurrentTask", () => {
         ),
     };
 
-    rerender(
-      <BlockContext.Provider value={cn("block-name")}>
-        <CurrentTask store={store} />
-      </BlockContext.Provider>,
-    );
+    rerender(<CurrentTask store={store} />);
 
     expect(getByTestId("next-task").disabled).toBe(true);
 
@@ -125,11 +108,7 @@ describe("CurrentTask", () => {
         ),
     };
 
-    rerender(
-      <BlockContext.Provider value={cn("block-name")}>
-        <CurrentTask store={store} />
-      </BlockContext.Provider>,
-    );
+    rerender(<CurrentTask store={store} />);
 
     expect(getByTestId("next-task").disabled).toBe(true);
   });