feat(csv-table): sheet tabs for multi-sheet workbooks

e2e/stories-a11y.known.json

@@ -8,5 +8,7 @@
   "primitives-csv-table--resized-column (dark): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read.",
   "primitives-csv-table--resized-column (light): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read.",
   "primitives-csv-table--selection (dark): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read.",
-  "primitives-csv-table--selection (light): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read."
+  "primitives-csv-table--selection (light): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read.",
+  "primitives-csv-table--sheets (dark): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read.",
+  "primitives-csv-table--sheets (light): color-contrast-unmeasured": "The selected range's outline is one box laid over its cells that paints only a border; hit-testing finds that box over the selected text and the sampler cannot follow a box that paints its edges alone, so the ground under the selected cells cannot be read."
 }

src/ui/csv-table.test.tsx

@@ -203,4 +203,27 @@ describe("CsvTable interactive", () => {
     expect(selections.at(-1)).toBeNull();
     unmount();
   });
+
+  test("arrow keys move between sheet tabs and open the sheet", () => {
+    const { container, firstColumn, unmount } = mount({
+      interactive: true,
+      sheets: [
+        { name: "One", text: "name,n\na,1\nb,2" },
+        { name: "Two", text: "name,n\nz,9\ny,8" },
+      ],
+    });
+    const tabs = () => [...container.querySelectorAll('[role="tab"]')];
+    act(() => {
+      tabs()[0]?.dispatchEvent(
+        new KeyboardEvent("keydown", { key: "ArrowRight", bubbles: true }),
+      );
+    });
+    expect(tabs().map((tab) => tab.getAttribute("aria-selected"))).toEqual([
+      "false",
+      "true",
+    ]);
+    expect(document.activeElement).toBe(tabs()[1] ?? null);
+    expect(firstColumn()).toEqual(["z", "y"]);
+    unmount();
+  });
 });