Tasks redesign MVP

[joshsmith]

Here's my thinking around what minimal looks like for the tasks redesign into swim lanes.

• We will have just four lists per project: Inbox, Backlog, In Progress, Done.
• Tasks only show the title, number, type, and inserted-at date
• The list is a TaskList which belongs to Project has many Tasks
• The TaskLists within the project are ordered from left to right by position integers ascending
• Task belongs to a TaskList and also has a position, and is ordered from top to bottom by position descending
• You can drag a task between lists horizontally and between other tasks vertically, which will update the position of the task and insert that task at the specified position
• Newly created tasks will automatically go to the top of the Inbox task list

We are leaving out the following for now, which may be added on later as small, iterative experiments:

• Add, delete, rename, or reorder lists in a project
• Add, change, remove, and view an assigned user for a task
• Add, remove, and view a skill for a task
• Add, remove, and view GitHub repositories for a task
• Load a subset of tasks per TaskList and load more as you scroll
• Filter tasks by type
• Filter out closed tasks
• Display an alert on the task card when a description is missing
• See the total number of tasks in a task list in that task list's header
• Quickly see whether a task has been updated since you last viewed that task
• Collapse the horizontal width of the task list column

[joshsmith]

Done! 🙌 @marineb