Emdash source with visual editor image upload fix

Fixes:
1. media.ts: wrap placeholder generation in try-catch
2. toolbar.ts: check r.ok, display error message in popover

packages/plugins/atproto/tests/admin-routing.test.ts

@@ -0,0 +1,19 @@
+import { describe, expect, it } from "vitest";
+
+import { getAdminPageTarget } from "../src/admin-routing.js";
+
+describe("getAdminPageTarget", () => {
+	it.each([
+		[undefined, "status"],
+		[{}, "status"],
+		[{ type: "page_load" }, "status"],
+		[{ type: "page_load", page: "/" }, "status"],
+		[{ type: "page_load", page: "/settings" }, "status"],
+		[{ type: "page_load", page: "/status" }, "status"],
+		[{ type: "page_load", page: "widget:sync-status" }, "sync-widget"],
+		[{ type: "page_load", page: "/unknown" }, null],
+		[{ type: "block_action", page: "/status" }, null],
+	])("maps %j to %s", (interaction, expected) => {
+		expect(getAdminPageTarget(interaction)).toBe(expected);
+	});
+});