✏️ feat: LaTeX parsing for Messages (#1585)

* feat: Beta features tab in Settings and LaTeX Parsing toggle

* feat: LaTex parsing with spec

client/src/utils/latex.ts

@@ -0,0 +1,24 @@
+// Regex to check if the processed content contains any potential LaTeX patterns
+const containsLatexRegex =
+  /\\\(.*?\\\)|\\\[.*?\\\]|\$.*?\$|\\begin\{equation\}.*?\\end\{equation\}/;
+// Regex for inline and block LaTeX expressions
+const inlineLatex = new RegExp(/\\\((.+?)\\\)/, 'g');
+// const blockLatex = new RegExp(/\\\[(.*?)\\\]/, 'gs');
+const blockLatex = new RegExp(/\\\[(.*?[^\\])\\\]/, 'gs');
+
+export const processLaTeX = (content: string) => {
+  // Escape dollar signs followed by a digit or space and digit
+  let processedContent = content.replace(/(\$)(?=\s?\d)/g, '\\$');
+
+  // If no LaTeX patterns are found, return the processed content
+  if (!containsLatexRegex.test(processedContent)) {
+    return processedContent;
+  }
+
+  // Convert LaTeX expressions to a markdown compatible format
+  processedContent = processedContent
+    .replace(inlineLatex, (match: string, equation: string) => `$${equation}$`) // Convert inline LaTeX
+    .replace(blockLatex, (match: string, equation: string) => `$$${equation}$$`); // Convert block LaTeX
+
+  return processedContent;
+};