Regression: Webhook Integration Creation + string error toast msg (#26008)

## Issue(s)
While creating an webhook integration, it was missing the **v1/**. Also, the toast was not properly displaying error messages

## Before:

![image](https://user-images.githubusercontent.com/1761174/175665990-c3e820c2-e9af-44ff-b0da-03b6a803f930.png)

![image](https://user-images.githubusercontent.com/1761174/175666183-d8d6999c-8ffd-43e9-835b-61ba76853d6b.png)


## After:

![image](https://user-images.githubusercontent.com/1761174/175665664-72b99178-e720-41a6-aec0-d0d06a25dfc2.png)


## Steps to test or reproduce
Try creating an Integration Webhook in Admin > Integrations. 
The payload will be sent to: http://localhost:3000/api/integrations.create

Edit a user, and set it's email the same email as an existing user: the toast message will not display the correct message



Co-authored-by: Debdut Chakraborty <76006232+debdutdeb@users.noreply.github.com>

apps/meteor/client/hooks/useEndpointAction.ts

@@ -24,7 +24,7 @@ export const useEndpointAction = <TMethod extends Method, TPath extends PathFor<
 
 			return data;
 		} catch (error) {
-			dispatchToastMessage({ type: 'error', message: String(error) });
+			dispatchToastMessage({ type: 'error', message: error });
 			throw error;
 		}
 	}, [dispatchToastMessage, params, sendData, successMessage]);

apps/meteor/client/views/account/security/TwoFactorEmail.js

@@ -10,8 +10,8 @@ const TwoFactorEmail = (props) => {
 
 	const isEnabled = user && user.services && user.services.email2fa && user.services.email2fa.enabled;
 
-	const enable2faAction = useEndpointAction('POST', 'users.2fa.enableEmail', undefined, t('Two-factor_authentication_enabled'));
-	const disable2faAction = useEndpointAction('POST', 'users.2fa.disableEmail', undefined, t('Two-factor_authentication_disabled'));
+	const enable2faAction = useEndpointAction('POST', '/v1/users.2fa.enableEmail', undefined, t('Two-factor_authentication_enabled'));
+	const disable2faAction = useEndpointAction('POST', '/v1/users.2fa.disableEmail', undefined, t('Two-factor_authentication_disabled'));
 
 	const handleEnable = useCallback(async () => {
 		await enable2faAction();

apps/meteor/client/views/admin/integrations/edit/EditIncomingWebhook.js

@@ -30,7 +30,7 @@ function EditIncomingWebhook({ data, onChange, ...props }) {
 	const setModal = useSetModal();
 
 	const deleteQuery = useMemo(() => ({ type: 'webhook-incoming', integrationId: data._id }), [data._id]);
-	const deleteIntegration = useEndpointAction('POST', 'integrations.remove', deleteQuery);
+	const deleteIntegration = useEndpointAction('POST', '/v1/integrations.remove', deleteQuery);
 	const saveIntegration = useMethod('updateIncomingIntegration');
 
 	const router = useRoute('admin-integrations');

apps/meteor/client/views/admin/integrations/edit/EditOutgoingWebhook.js

@@ -46,7 +46,7 @@ function EditOutgoingWebhook({ data, onChange, setSaveAction, ...props }) {
 	const router = useRoute('admin-integrations');
 
 	const deleteQuery = useMemo(() => ({ type: 'webhook-outgoing', integrationId: data._id }), [data._id]);
-	const deleteIntegration = useEndpointAction('POST', 'integrations.remove', deleteQuery);
+	const deleteIntegration = useEndpointAction('POST', '/v1/integrations.remove', deleteQuery);
 
 	const handleDeleteIntegration = useCallback(() => {
 		const closeModal = () => setModal();

apps/meteor/client/views/admin/integrations/new/NewIncomingWebhook.js

@@ -26,7 +26,7 @@ export default function NewIncomingWebhook(props) {
 	const { values: formValues, handlers: formHandlers, reset } = useForm(initialState);
 
 	const params = useMemo(() => ({ ...formValues, type: 'webhook-incoming' }), [formValues]);
-	const saveAction = useEndpointAction('POST', 'integrations.create', params, t('Integration_added'));
+	const saveAction = useEndpointAction('POST', '/v1/integrations.create', params, t('Integration_added'));
 
 	const handleSave = useCallback(async () => {
 		const result = await saveAction();

apps/meteor/client/views/admin/integrations/new/NewOutgoingWebhook.js

@@ -47,7 +47,7 @@ export default function NewOutgoingWebhook({ data = defaultData, onChange, setSa
 		}),
 		[formValues, triggerWords, urls],
 	);
-	const saveIntegration = useEndpointAction('POST', 'integrations.create', params, t('Integration_added'));
+	const saveIntegration = useEndpointAction('POST', '/v1/integrations.create', params, t('Integration_added'));
 
 	const handleSave = useCallback(async () => {
 		const result = await saveIntegration();