Component should not be editable while experiment is created or running: property fields, delete component button, copy/delete/edit variant should all be disabled

**This issue appeared after the extJS removal

Steps to reproduce:

1. Go to a channel

2. Click on a component

3. Create an experiment

4. Go to Properties tab

Expected result:

Nothing should be editable (An editor cannot add characteristics or segment, or change component).

Actual result:

Editor can add new characteristics, segnent, delete or copy a variant. The other component properties are disabled, which is ok.