LDVSpec usability improvements

.gitlab-ci.yml

integration/integration-test.robot

integration/resource/keywords.robot

integration/resource/variables.robot

ldvspec/lofardata/models.py

ldvspec/lofardata/static/update_workflow.js

...ec/lofardata/templates/lofardata/group/create_update.html

ldvspec/lofardata/templates/lofardata/index.html

...fardata/templates/lofardata/partial_templates/badges.html

...ta/templates/lofardata/partial_templates/table_entry.html

...a/templates/lofardata/partial_templates/table_header.html

...emplates/lofardata/partial_templates/user_guide_link.html

.../templates/lofardata/workspecification/create_update.html

...fardata/templates/lofardata/workspecification/detail.html

ldvspec/lofardata/views/group/template.py

ldvspec/lofardata/views/workspecification/template.py