catalog: Display orphanWarning, fix grid spacing

Signed-off-by: Johan Haals <johan.haals@gmail.com>

packages/app/src/components/catalog/EntityPage.tsx

@@ -40,6 +40,7 @@ import {
   isComponentType,
   isKind,
   EntityHasResourcesCard,
+  EntityOrphanWarning,
 } from '@backstage/plugin-catalog';
 import {
   EntityCircleCIContent,
@@ -214,7 +215,10 @@ const errorsContent = (
 
 const overviewContent = (
   <Grid container spacing={3} alignItems="stretch">
-    <Grid item md={6}>
+    <Grid item xs={12}>
+      <EntityOrphanWarning />
+    </Grid>
+    <Grid item md={8} xs={12}>
       <EntityAboutCard variant="gridItem" />
     </Grid>
 
@@ -226,7 +230,7 @@ const overviewContent = (
       </EntitySwitch.Case>
     </EntitySwitch>
 
-    <Grid item md={4} sm={6}>
+    <Grid item md={4} xs={12}>
       <EntityLinksCard />
     </Grid>
 
@@ -260,7 +264,7 @@ const overviewContent = (
       </EntitySwitch.Case>
     </EntitySwitch>
 
-    <Grid item md={6}>
+    <Grid item md={8} xs={12}>
       <EntityHasSubcomponentsCard variant="gridItem" />
     </Grid>
   </Grid>