Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

apps/ely-mark/web/src/failure.js

@@ -0,0 +1,11 @@
+/** The source as saved, and why it did not render. */
+export function failure(source, message, at) {
+  const box = document.createElement('div')
+  box.className = 'ely-failure'
+  const why = document.createElement('p')
+  why.textContent = at === undefined ? message : `${message} (${at})`
+  const code = document.createElement('pre')
+  code.textContent = source
+  box.append(why, code)
+  return box
+}