Add tabs to the right panel (#12672)

* Create new method for header button behaviour

With the introduction of tabs, the behaviour of the header buttons is
changed as follows:
- Close any right panel if open
- Open the correct right panel if no panel was open before

The old method (and behaviour) is retained as showOrHidePhase.

* Implement tabs in the right panel

There are three tabs: Info, People and Threads

* Remove unwanted code from RoomSummaryCard

- Remove the menu item for opening the memberlist since that is now
  taken of by the tabs.
- Remove the close button

* Remove code for focusing close button from tac item

See https://github.com/matrix-org/matrix-react-sdk/pull/12410

There's no longer a close button to focus so we instead focus the thread
tab. This is done in RightPaneltabs.tsx so we just need to remove this
code.

* Introduce a room info icon to the header

This was previously present in the legacy room header but not in the new
header.

* BaseCard changes

- Adds id, ariaLabelledBy and role props to implement tab accessibility.
- Adds hideHeaderButtons prop to hide header buttons (think back and
  close buttons).
- Change confusing header rendering code:
  header is not rendered ONLY when no header is passed AND
  hideHeaderButtons is true.

* Refactor repeated code into function

Created a new function createSpaceScopeHeader which returns the
component if the room is a space room. Previously this code was
duplicated in every component that uses SpaceScopeHeader component.

* Pass BaseCard attributes and use helper function

Actually using the code from the last two commits

* Add, update and remove tests/screenshots/snapshots

* Fix distance between search bar and tabs

* Update compound

* Update screenshots/snapshots

test/components/structures/ThreadPanel-test.tsx

@@ -36,8 +36,6 @@ import ResizeNotifier from "../../../src/utils/ResizeNotifier";
 import { createTestClient, getRoomContext, mkRoom, mockPlatformPeg, stubClient } from "../../test-utils";
 import { mkThread } from "../../test-utils/threads";
 import { IRoomState } from "../../../src/components/structures/RoomView";
-import defaultDispatcher from "../../../src/dispatcher/dispatcher";
-import { Action } from "../../../src/dispatcher/actions";
 
 jest.mock("../../../src/utils/Feedback");
 
@@ -148,43 +146,6 @@ describe("ThreadPanel", () => {
             fireEvent.click(getByRole(container, "button", { name: "Mark all as read" }));
             await waitFor(() => expect(mockClient.sendReadReceipt).not.toHaveBeenCalled());
         });
-
-        it("focuses the close button on FocusThreadsPanel dispatch", () => {
-            const ROOM_ID = "!roomId:example.org";
-
-            stubClient();
-            mockPlatformPeg();
-            const mockClient = mocked(MatrixClientPeg.safeGet());
-
-            const room = new Room(ROOM_ID, mockClient, mockClient.getUserId() ?? "", {
-                pendingEventOrdering: PendingEventOrdering.Detached,
-            });
-
-            render(
-                <MatrixClientContext.Provider value={mockClient}>
-                    <RoomContext.Provider
-                        value={getRoomContext(room, {
-                            canSendMessages: true,
-                        })}
-                    >
-                        <ThreadPanel
-                            roomId={ROOM_ID}
-                            onClose={jest.fn()}
-                            resizeNotifier={new ResizeNotifier()}
-                            permalinkCreator={new RoomPermalinkCreator(room)}
-                        />
-                    </RoomContext.Provider>
-                </MatrixClientContext.Provider>,
-            );
-
-            // Unfocus it first so we know it's not just focused by coincidence
-            screen.getByTestId("base-card-close-button").blur();
-            expect(screen.getByTestId("base-card-close-button")).not.toHaveFocus();
-
-            defaultDispatcher.dispatch({ action: Action.FocusThreadsPanel }, true);
-
-            expect(screen.getByTestId("base-card-close-button")).toHaveFocus();
-        });
     });
 
     describe("Filtering", () => {