Update backend links and fix hardcoded ones

app/javascript/flavours/glitch/util/backend_links.js

@@ -5,3 +5,5 @@ export const termsLink = '/terms';
 export const accountAdminLink = (id) => `/admin/accounts/${id}`;
 export const statusAdminLink = (account_id, status_id) => `/admin/accounts/${account_id}/statuses/${status_id}`;
 export const filterEditLink = (id) => `/filters/${id}/edit`;
+export const relationshipsLink = '/relationships';
+export const securityLink = '/auth/edit';