fix(tests): remove low-value source snapshots and define test standards

apps/desktop/src/components/docs/__tests__/DatabaseDocsDialogLayout.spec.ts

@@ -1,10 +0,0 @@
-import { readFileSync } from "node:fs";
-import { describe, expect, it } from "vitest";
-
-const dialogSource = readFileSync(new URL("../DatabaseDocsDialog.vue", import.meta.url), "utf8");
-
-describe("DatabaseDocsDialog layout", () => {
-  it("reserves header space for the absolute close button", () => {
-    expect(dialogSource).toMatch(/<DialogHeader class="[^"]*\bpr-12\b[^"]*">/);
-  });
-});