Fix MembersListCard description overflow.

Signed-off-by: Jussi Hallila <jussi@hallila.com>

.changeset/gorgeous-masks-beg.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-org': patch
+---
+
+Fix rendering of description in MembersListCard. Add guardrails for potential long texts to prevent it from breaking the UI.

plugins/org/src/components/Cards/Group/MembersList/MembersListCard.tsx

@@ -112,7 +112,9 @@ const MemberComponent = (props: { member: UserEntity }) => {
             </Link>
           )}
           {description && (
-            <Typography variant="subtitle2">{description}</Typography>
+            <Typography variant="subtitle2">
+              <OverflowTooltip text={description} line={5} />
+            </Typography>
           )}
         </Box>
       </Box>