release: 0.12.0 (#99)

### Description

This release introduces a new UI component - `PagerDutySmallCard` -
which allows users to still have visibility on the status of their
PagerDuty services in Backstage without using so much screen space. This
new UI component removes information on *incidents* and *recent
changes*, and moves *insights* and *on call* information to collapsable
panels that can optionally be removed.


![image](https://github.com/PagerDuty/backstage-plugin/assets/2689939/0f6b9e55-786a-4fcb-959f-78ff94c06c39)


This feature was initially contributed by @milenkotomic and slightly
modify after feedback from other community members.

## Acknowledgement

By submitting this pull request, I confirm that you can use, modify,
copy, and redistribute this contribution, under the terms of your
choice.

**Disclaimer:** We value your time and bandwidth. As such, any pull
requests created on non-triaged issues might not be successful.

dev/index.tsx

@@ -18,10 +18,11 @@
 import React from 'react';
 import { EntityProvider } from '@backstage/plugin-catalog-react';
 import { createDevApp } from '@backstage/dev-utils';
-import { pagerDutyPlugin, EntityPagerDutyCard } from '../src/plugin';
+import {pagerDutyPlugin, EntityPagerDutyCard, EntityPagerDutySmallCard} from '../src/plugin';
 import { pagerDutyApiRef } from '../src/api';
 import { mockPagerDutyApi } from './mockPagerDutyApi';
 import { mockEntity } from './mockEntity';
+import {Grid} from '@material-ui/core';
 
 createDevApp()
   .registerApi({
@@ -39,4 +40,15 @@ createDevApp()
       </EntityProvider>
     ),
   })
+  .addPage({
+    path: '/pagerduty-small',
+    title: 'PagerDuty Small Card',
+    element: (
+      <EntityProvider entity={mockEntity}>
+        <Grid md={4}>
+          <EntityPagerDutySmallCard/>
+        </Grid>
+      </EntityProvider>
+    ),
+  })
   .render();