Revert "simplify page with https://github.com/adityatelange/hugo-PaperMod.git"

This reverts commit c2189ef133.

themes/blowfish/assets/js/mermaid.js

@@ -0,0 +1,31 @@
+function css(name) {
+  return "rgb(" + getComputedStyle(document.documentElement).getPropertyValue(name) + ")";
+}
+
+document.addEventListener("DOMContentLoaded", () => {
+  const mermaidDivs = document.querySelectorAll("div.mermaid");
+
+  for (const div of mermaidDivs) {
+    const preElement = div.querySelector("pre");
+    if (preElement) {
+      div.textContent = preElement.textContent;
+    }
+  }
+});
+
+mermaid.initialize({
+  theme: "base",
+  themeVariables: {
+    background: css("--color-neutral"),
+    primaryColor: css("--color-primary-200"),
+    secondaryColor: css("--color-secondary-200"),
+    tertiaryColor: css("--color-neutral-100"),
+    primaryBorderColor: css("--color-primary-400"),
+    secondaryBorderColor: css("--color-secondary-400"),
+    tertiaryBorderColor: css("--color-neutral-400"),
+    lineColor: css("--color-neutral-600"),
+    fontFamily:
+      "ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,segoe ui,Roboto,helvetica neue,Arial,noto sans,sans-serif",
+    fontSize: "16px",
+  },
+});