fix: Stop creation of empty name segments on people page (#4028)

Co-authored-by: Johannes <72809645+jobenjada@users.noreply.github.com>

apps/web/app/(app)/environments/[environmentId]/(people)/segments/components/BasicCreateSegmentModal.tsx

@@ -101,7 +101,7 @@ export const BasicCreateSegmentModal = ({
   const isSaveDisabled = useMemo(() => {
     // check if title is empty
 
-    if (!segment.title) {
+    if (!segment.title.trim()) {
       return true;
     }