fix: WIP toggle by reducing max issue title

- when the PR title has the maximum length, the WIP toggle switch does nothing
- work around this by slightly reducing the max input size (- 10 characters for eventually long prefixes)
- test WIP toggling edge case in playwright

fix(e2e): increase timeouts

A look at recent runs suggests they should be increased globally. The timeouts in the config file have no timeout by default.

tests/e2e/utils_e2e.js

@@ -22,6 +22,7 @@ const LOGIN_PASSWORD = 'password';
 // log in user and store session info. This should generally be
 //  run in test.beforeAll(), then the session can be loaded in tests.
 export async function login_user(browser, workerInfo, user) {
+  test.setTimeout(60000);
   // Set up a new context
   const context = await test_context(browser);
   const page = await context.newPage();