feat: Management pages for templates (HEXA-1129, HEXA-1130)

[YolanFery]

Allow editing and deleting of pipeline templates and versions.

Changes

• Import the GraphQL schema change from feat: Management pages for templates (HEXA-1129, HEXA-1130) openhexa-app#921
• Change a bit the Button component to allow more UI customizations
• Show links to templates in pipeline view
• Add deep links to the templates view
• Pages for templates and template versions list
• Delete template dialog
• Grid and Card view for templates, user can switch between the two
• Fix redirections after creation of templates now that we have deep links
• Update unit tests and extend slightly

How/what to test

• Create, update, delete template and template versions.
• The card and grid views are working as expected

Screenshots / screencast

Card view

Card overlay

Template view

Template version view

Template version edit

[qgerome]

• We can go forward without the split of pages for the pipelines & templates but we'll need to do that right after
• The sidebar "pipelines" tab is not marked as "active" when the user is in the templates pages.
• We'll need to fix the pipelines' code problem ASAP

[qgerome]

@YolanFery Once you fix the conflict you can merge this.

[YolanFery]

• We can go forward without the split of pages for the pipelines & templates but we'll need to do that right after
• The sidebar "pipelines" tab is not marked as "active" when the user is in the templates pages.
• We'll need to fix the pipelines' code problem ASAP

Created two tickets https://bluesquare.atlassian.net/browse/HEXA-1189 and https://bluesquare.atlassian.net/browse/HEXA-1188 to track that and not forget about it 😊