add image/gif filter

Author: ggqshr

ui/src/common/Markdown.tsx

@@ -6,7 +6,7 @@ import gfm from 'remark-gfm';
 // Copy from mlflow/server/js/src/shared/web-shared/genai-markdown-renderer/GenAIMarkdownRenderer.tsx
 // Related PR: https://github.com/mlflow/mlflow/pull/16761
 const urlTransform: UrlTransform = (value) => {
-    if (value.startsWith('data:image/png;') || value.startsWith('data:image/jpeg;')) {
+    if (value.startsWith('data:image/png;') || value.startsWith('data:image/jpeg;') || value.startsWith('data:image/gif;')) {
         return value;
     }
     return defaultUrlTransform(value);