Add link to edit each listed filter

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

@@ -4,3 +4,4 @@ export const signOutLink = '/auth/sign_out';
 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`;