Update mermaid to v11 (#31913)

Update mermaid to
[v11](https://github.com/mermaid-js/mermaid/releases/tag/v11.0.0) and
enable the new [`suppressErrorRendering`
option](https://github.com/mermaid-js/mermaid/pull/4359) to ensure
mermaid never renders error elements into the DOM (we have per-chart
error rendering, so don't need it). Tested various chart types.

BTW, I was unable to reproduce that error rendering from mermaid with
`suppressErrorRendering: false` and I thought we had some CSS to hide
the error element, but I could not find it, not even in git history.

package.json

@@ -33,7 +33,7 @@
     "jquery": "3.7.1",
     "katex": "0.16.11",
     "license-checker-webpack-plugin": "0.2.1",
-    "mermaid": "10.9.1",
+    "mermaid": "11.0.2",
     "mini-css-extract-plugin": "2.9.0",
     "minimatch": "10.0.1",
     "monaco-editor": "0.50.0",

web_src/js/markup/mermaid.ts

@@ -20,6 +20,7 @@ export async function renderMermaid() {
     startOnLoad: false,
     theme: isDarkTheme() ? 'dark' : 'neutral',
     securityLevel: 'strict',
+    suppressErrorRendering: true,
   });
 
   for (const el of els) {