deps: remove PWA and impl mermaid.

- I HATE PERSISTENT CACHE!

src/theme.hope.ts

@@ -76,8 +76,8 @@ export default hopeTheme(
       tabs: true,
       tasklist: true,
       vPre: true,
-      // katex
-      math: true,
+      mermaid: true,
+      math: true,  // katex
     },
 
     // 多语言配置
@@ -107,59 +107,6 @@ export default hopeTheme(
       components: {
         components: ["Badge", "VPCard"],
       },
-
-      // 如果你需要 PWA。安装 @vuepress/plugin-pwa 并取消下方注释
-      pwa: {
-        favicon: "/favicon.ico",
-        cacheHTML: false,
-        cacheImage: false,
-        appendBase: true,
-        apple: {
-          icon: "/assets/icon/apple-icon-152.png",
-          statusBarColor: "black",
-        },
-        manifest: {
-          icons: [
-            {
-              src: "/assets/icon/chrome-mask-512.png",
-              sizes: "512x512",
-              purpose: "maskable",
-              type: "image/png",
-            },
-            {
-              src: "/assets/icon/chrome-mask-192.png",
-              sizes: "192x192",
-              purpose: "maskable",
-              type: "image/png",
-            },
-            {
-              src: "/assets/icon/chrome-512.png",
-              sizes: "512x512",
-              type: "image/png",
-            },
-            {
-              src: "/assets/icon/chrome-192.png",
-              sizes: "192x192",
-              type: "image/png",
-            },
-          ],
-          // shortcuts: [
-          //   {
-          //     name: "Demo",
-          //     short_name: "Demo",
-          //     url: "/demo/",
-          //     icons: [
-          //       {
-          //         src: "/assets/icon/guide-maskable.png",
-          //         sizes: "192x192",
-          //         purpose: "maskable",
-          //         type: "image/png",
-          //       },
-          //     ],
-          //   },
-          // ],
-        },
-      },
     },
   },
   {