feat: Ability to remove inbox avatar (#2885)

* Delete inbox avatar

1) New API endpoint added for deleting inbox avatar.
2) Delete avatar button in the inbox settings page.

Co-authored-by: Sojan Jose <sojan@pepalo.com>
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/store/modules/inboxes.js

@@ -173,6 +173,13 @@ export const actions = {
       throw new Error(error.message);
     }
   },
+  deleteInboxAvatar: async (_, inboxId) => {
+    try {
+      await InboxesAPI.deleteInboxAvatar(inboxId);
+    } catch (error) {
+      throw new Error(error);
+    }
+  },
 };
 
 export const mutations = {

app/javascript/dashboard/store/modules/specs/inboxes/actions.spec.js

@@ -128,4 +128,19 @@ describe('#actions', () => {
       ]);
     });
   });
+
+  describe('#deleteInboxAvatar', () => {
+    it('sends correct actions if API is success', async () => {
+      axios.delete.mockResolvedValue();
+      await expect(
+        actions.deleteInboxAvatar({}, inboxList[0].id)
+      ).resolves.toBe();
+    });
+    it('sends correct actions if API is error', async () => {
+      axios.delete.mockRejectedValue({ message: 'Incorrect header' });
+      await expect(
+        actions.deleteInboxAvatar({}, inboxList[0].id)
+      ).rejects.toThrow(Error);
+    });
+  });
 });