fix: update layout titles to object format for consistency

src/components/iframe-page-comps/Iframe-PlotlyJs-Comp.vue

@@ -18,32 +18,32 @@ const readyPromise = new Promise<void>((resolve) => {
 });
 
 const 频谱瀑布图Layout = {
-  title: '频谱瀑布图',
+  title: { text: '频谱瀑布图' },
   xaxis: {
-    title: '频率 (Hz)',
+    title: { text: '频率 (Hz)' },
     // range: [0, 22_050],
     showgrid: false,
     tickformat: ',d', // 设置为带逗号的整数格式 (推荐，更易读)
   },
   yaxis: {
-    title: '时间步',
+    title: { text: '时间步' },
     showgrid: false,
     tickformat: ',d', // 设置为带逗号的整数格式 (推荐，更易读)
   },
   margin: { l: 60, r: 40, b: 40, t: 60 },
-};
+} satisfies Partial<import('plotly.js-dist-min').Layout>;
 
 const 频谱图Layout = {
-  title: '频谱图',
+  title: { text: '频谱图' },
   xaxis: {
-    title: '频率 (Hz)',
+    title: { text: '频率 (Hz)' },
     // range: [0, 22_050],
     showgrid: true,
     gridcolor: '#eee',
     tickformat: ',d', // 设置为带逗号的整数格式 (推荐，更易读)
   },
   yaxis: {
-    title: '幅度 (dB)',
+    title: { text: '幅度 (dB)' },
     showgrid: true, // 显示网格线
     gridcolor: '#eee',
     tickformat: ',d', // 设置为带逗号的整数格式 (推荐，更易读)