fix: metadata filters for nested fields (#7408)

Signed-off-by: Ayush Sharma <[email protected]>

Author: ayush3160

app/src/pages/project/MetadataTooltip.tsx

@@ -16,7 +16,13 @@ export const makeMetadataTooltipFilterCondition = (
    */
   value: string | number | boolean
 ) => {
-  return `metadata['${key}'] == ${toPythonPrimitiveStr(value)}`;
+  const pathSegments = key.split(".");
+  const bracketNotation = pathSegments
+    .map((segment) => {
+      return /^\d+$/.test(segment) ? `[${segment}]` : `['${segment}']`;
+    })
+    .join("");
+  return `metadata${bracketNotation} == ${toPythonPrimitiveStr(value)}`;
 };
 
 type MetadataTooltipProps = {