Integration of webapp-ui with tag v0.4.0 to AS.

[ignatov17]

Integration and deployment of new version of webapp-ui with tag v0.4.0 with identity management and contract fields verification.

Steps:

• [x] build image for webapp v0.4.0
• [x] setting up webapp
• [x] test webapp-ui
• [x] upgrade steps from previous version v0.2.0 of webapp-ui