Fix marketplace self-registration UI

[GoebelL]

Changes in this Pull Request:

• Fix marketplace self-registration UI #1288

Mandatory checks:

• [X] Branch is up to date (latest changes were fetched from the upstream branch before creating this PR)
• [X] Changes were tested manually
• [ ] Java code changes are unit tested
• [ ] Web tests are successful

To be checked by the reviewer:

• [ ] Clean Java code and unit tested changes
• [X] UI customizability is preserved: No hard-coded styling and URL references in JSF views

To be checked by the pull request owner:

• [ ] .MASTER/job/BES_MASTER_IT/
• [ ] .MASTER/job/OSCM_WS_Tests_INTERNAL/
• [ ] .MASTER/job/OSCM_WS_Tests_OIDC/
• [X] .MASTER/job/OSCM_Integration_Tests_INTERNAL/
• [ ] .MASTER/job/OSCM_Integration_Tests_OIDC/

Cross repository and core changes:

• [ ] Interdependent changes have been communicated to the team (if applicable)
• [ ] This pull request includes high risk modifications or core changes (e.g API, datamodel, authentication...). Mandatory reviewers: @goebell

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This change is 

[codecov[bot]]

Codecov Report

Merging #1289 (868ba10) into master (fbf227c) will not change coverage. The diff coverage is n/a.

Additional details and impacted files

[](https://codecov.io/gh/servicecatalog/oscm/pull/1289?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=servicecatalog) ```diff @@ Coverage Diff @@ ## master #1289 +/- ## ========================================= Coverage 55.47% 55.47% Complexity 14427 14427 ========================================= Files 1375 1375 Lines 80476 80476 Branches 8598 8598 ========================================= Hits 44646 44646 Misses 33140 33140 Partials 2690 2690 ```