feat: retrieval message code highlight, message copy button

lightrag_webui/src/lib/constants.ts

@@ -27,10 +27,39 @@ export const defaultQueryLabel = '*'
 // reference: https://developer.mozilla.org/en-US/docs/Web/HTTP/MIME_types/Common_types
 export const supportedFileTypes = {
   'text/plain': [
-      '.txt', '.md', '.html', '.htm', '.tex', '.json', '.xml', '.yaml', '.yml',
-      '.rtf', '.odt', '.epub', '.csv', '.log', '.conf', '.ini', '.properties',
-      '.sql', '.bat', '.sh', '.c', '.cpp', '.py', '.java', '.js', '.ts',
-      '.swift', '.go', '.rb', '.php', '.css', '.scss', '.less'
+    '.txt',
+    '.md',
+    '.html',
+    '.htm',
+    '.tex',
+    '.json',
+    '.xml',
+    '.yaml',
+    '.yml',
+    '.rtf',
+    '.odt',
+    '.epub',
+    '.csv',
+    '.log',
+    '.conf',
+    '.ini',
+    '.properties',
+    '.sql',
+    '.bat',
+    '.sh',
+    '.c',
+    '.cpp',
+    '.py',
+    '.java',
+    '.js',
+    '.ts',
+    '.swift',
+    '.go',
+    '.rb',
+    '.php',
+    '.css',
+    '.scss',
+    '.less'
   ],
   'application/pdf': ['.pdf'],
   'application/msword': ['.doc'],