fix: Show meaning full error message while creating and email inbox [CW-1312] (#6711)

* chore: Shows error message while creating and email inbox

* chore: Review fixes

---------

Co-authored-by: Shivam Mishra <scm.mymail@gmail.com>

app/javascript/dashboard/routes/dashboard/settings/inbox/channels/emailChannels/ForwardToOption.vue

@@ -63,6 +63,7 @@ export default {
     return {
       channelName: '',
       email: '',
+      alertMessage: '',
     };
   },
   computed: {
@@ -101,9 +102,11 @@ export default {
           },
         });
       } catch (error) {
-        this.showAlert(
-          this.$t('INBOX_MGMT.ADD.EMAIL_CHANNEL.API.ERROR_MESSAGE')
-        );
+        const errorMessage = error?.message;
+        this.alertMessage =
+          errorMessage ||
+          this.$t('INBOX_MGMT.ADD.EMAIL_CHANNEL.API.ERROR_MESSAGE');
+        this.showAlert(this.alertMessage);
       }
     },
   },

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

@@ -157,8 +157,9 @@ export const actions = {
       sendAnalyticsEvent(channel.type);
       return response.data;
     } catch (error) {
+      const errorMessage = error?.response?.data?.message;
       commit(types.default.SET_INBOXES_UI_FLAG, { isCreating: false });
-      throw new Error(error);
+      throw new Error(errorMessage);
     }
   },
   createWebsiteChannel: async ({ commit }, params) => {