TypeError: Cannot read property 'length' of null

[mackers]

Steps to reproduce:

• Create new group
• Leave group name empty

Expected results:

• I am notified that I need to enter a group name

Actual results:

• An error occurs.

https://sentry.io/ushahidi/tenfour-pwa/issues/753952910/

TypeError: Cannot read property 'length' of null
  at createGroup (../../src/pages/group-edit/group-edit.ts:160:7)
  at Object.handleEvent (../../src/pages/group-edit/group-edit.ngfactory.js.pre-build-optimizer.js:73:25)
  at t.invokeTask (/polyfills.js:3:15660)
  at t.invokeTask (/polyfills.js:3:15581)
  at r.runTask (/polyfills.js:3:10834)
...
(10 additional frame(s) were not displayed)

[mackers]

@Eve-wanderi Can you test. I have added steps to reproduce.

[Eve-wanderi]

Confirmed Passed QA.