fix(orchestrator): simplify workflows tab layout and add changeset (#2772)

Remove redundant MUI Grid wrapper around WorkflowsTable in WorkflowsTabContent.

Made-with: Cursor

Author: lokanandaprabhu

workspaces/orchestrator/.changeset/workflows-tab-simplify-layout.md

@@ -0,0 +1,5 @@
+---
+'@red-hat-developer-hub/backstage-plugin-orchestrator': patch
+---
+
+Simplify workflows tab layout by rendering `WorkflowsTable` directly inside `Content` instead of an extra MUI `Grid` wrapper.

workspaces/orchestrator/plugins/orchestrator/src/components/OrchestratorPage/WorkflowsTabContent.tsx

@@ -23,8 +23,6 @@ import {
 } from '@backstage/core-components';
 import { useApi } from '@backstage/core-plugin-api';
 
-import Grid from '@mui/material/Grid';
-
 import { WorkflowOverviewDTO } from '@red-hat-developer-hub/backstage-plugin-orchestrator-common';
 
 import { orchestratorApiRef } from '../../api';
@@ -65,13 +63,7 @@ export const WorkflowsTabContent = ({
     <Content noPadding>
       {loading ? <Progress /> : null}
       {error ? <ResponseErrorPanel error={error} /> : null}
-      {isReady ? (
-        <Grid container direction="column">
-          <Grid item xs={12}>
-            <WorkflowsTable items={value ?? []} />
-          </Grid>
-        </Grid>
-      ) : null}
+      {isReady ? <WorkflowsTable items={value ?? []} /> : null}
     </Content>
   );
 };