feat(snippets): redesign panel to match the host list

plugins/snippets/tests/frontend/settings.test.ts

@@ -0,0 +1,26 @@
+import { describe, expect, it } from "vitest";
+import { readSnippetSettings } from "../../src/frontend/settings";
+
+describe("readSnippetSettings", () => {
+  it("falls back to the manifest defaults", () => {
+    expect(readSnippetSettings({})).toEqual({
+      foldersCollapsed: true,
+      showCommands: true,
+      confirmExecution: false,
+    });
+  });
+
+  it("reads saved values", () => {
+    expect(
+      readSnippetSettings({
+        foldersCollapsed: false,
+        showCommands: false,
+        confirmExecution: true,
+      }),
+    ).toEqual({
+      foldersCollapsed: false,
+      showCommands: false,
+      confirmExecution: true,
+    });
+  });
+});