message: chore: refine KatexPlayground variable
diff: @@ -13,7 +13,7 @@ export default defineComponent({
  = \\left(\\frac {y^{\\omega}} {\\omega}\\right) \\left\\{(\\log y)^r + \\sum_{i=1}^r \\frac {(-1)^ Ir \\cdots (r-i+1) (\\log y)^{ri}} {\\omega^i} \\right\\}`);
  const result = ref("");
  - const error = ref(false);
  + const inError = ref(false);
  const katexRender = () => {
  try {
  @@ -21,10 +21,10 @@ export default defineComponent({
  displayMode: true,
  throwOnError: true,
  });
  - error.value = false;
  + inError.value = false;
  } catch (err) {
  result.value = err.toString();
  - error.value = true;
  + inError.value = true;
  }
  };
  @@ -44,7 +44,7 @@ export default defineComponent({
  },
  }),
  h("p", {
  - class: ["katex-block", { "katex-error": error.value }],
  + class: ["katex-block", { "katex-error": inError.value }],
  innerHTML: result.value || "Here will be the render result",
  }),
  ]);
  