feat: add toast for no content

src/lib/imageGenerator.ts

@@ -63,54 +63,6 @@ function renderLatexToHtml(latex: string, fontSize: number): string {
   }
 }
 
-/**
- * Renders Markdown with LaTeX to HTML
- * For complex Markdown, we extract and render math blocks separately
- */
-function renderMarkdownToHtml(markdown: string, fontSize: number): string {
-  // Simple approach: extract LaTeX blocks and render them
-  // For full Markdown support, you'd use a Markdown parser
-  
-  let html = markdown;
-  
-  // Replace display math $$ ... $$
-  html = html.replace(/\$\$([\s\S]*?)\$\$/g, (_, latex) => {
-    try {
-      return `<div class="math-block">${katex.renderToString(latex.trim(), {
-        throwOnError: false,
-        displayMode: true,
-        output: 'html',
-        strict: false,
-      })}</div>`;
-    } catch {
-      return `<div class="math-block" style="color: red;">Error: ${latex}</div>`;
-    }
-  });
-  
-  // Replace inline math $ ... $
-  html = html.replace(/\$([^$\n]+)\$/g, (_, latex) => {
-    try {
-      return katex.renderToString(latex.trim(), {
-        throwOnError: false,
-        displayMode: false,
-        output: 'html',
-        strict: false,
-      });
-    } catch {
-      return `<span style="color: red;">Error: ${latex}</span>`;
-    }
-  });
-  
-  // Basic Markdown: newlines to <br>
-  html = html.replace(/\n/g, '<br>');
-  
-  return `
-    <div style="font-size: ${fontSize}px; line-height: 1.8; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;">
-      ${html}
-    </div>
-  `;
-}
-
 /**
  * Waits for all KaTeX fonts to be loaded
  */