Update the model list page

Issue information

From user: rkoller

Related to !214 (merged)

Contribution record

Fork management

Problem/Motivation

at the moment every button on the module listing page /admin/config/workflow/eca is displayed as a blue primary button. per definition the primary button signifies the primary CTA on the page. with eca and bpmn and the core modeller installed you currently have four primary buttons.

Proposed resolution

• The save button should be the blue primary button.
• The model listing page should only have three buttons no matter if one or more modelers are installed.
• The adding of a new model should be renamed to +Add new model and be a grey regular button
• If only one modeler is installed clicking +Add new model forwards the user to the new model page.
• If more than one modeler is installed clicking +Add new modelforwards the user to a page similar to the node add page (/node/add) where the models available are listed with > title and description underneath.
• The import buttons should be also a grey regular button.