v2109

• plans: make cost field required
• plans: add created & modified to export
• plans: change helptexts and field order in form
• plans: add contact fields, show them on detail page and add to export
• polls: add weight for choice in data migration for old polls
• plans: add freetext filter to bplans, plans, external projects dashboard list
• plans: remove left navigation from plan form
• plans: use richtext field from a4 for description
• plans: add tile image
• plans: enable to save draft before publishing, add preview
• maps: fix three dots menu
• plans: add pagination to dashboard list
• polls: delete old poll models and their tables from database
• modules: fix permissions for publish and delete view
• plans: use progress line for create and update
• polls: migrate content type of actions to new poll app from a4
• polls: translate label of other choice to browser language
• polls: validate that there can only be one vote per choice per user
• polls: allow to remove answer for multiple choice
• projects: align dashboard contact form with other forms
• polls: adapt link/button text to whether user has already voted and disable vote button when no changes are made
• polls: use module.get_detail_url in for absoulte_url
• many updates
• many tests