feat(milestone): milestone tables, views, forms and one selection model

milestone view printed the list row, and milestone list hid the due date
and progress. milestone list now shows ID TITLE [STATE] DUE PROGRESS, open
milestones first and by due date; milestone view shows the state, due
date, progress, description and the milestone's web page (also --web).

Every milestone command addresses milestones by title or ID. Mutations
report ✓ lines: milestone create also prints the new milestone's URL and
takes the title as an argument; close and reopen skip milestones already
in that state; delete names the milestone in its confirmation; milestone
issue add and remove report one line such as "✓ Added #1, #2 to
milestone "v1.0" in alice/x". milestone issue list uses the issue table.
milestone edit without flags on a terminal opens the milestone form with
the current values, and every milestone command completes milestone
titles and has help text with examples.

Signed-off-by: bircni <bircni@icloud.com>

internal/app/milestone_names_test.go

@@ -171,7 +171,6 @@ func TestMilestonesAcceptTitlesOrIDs(t *testing.T) {
 	require.NoError(t, run("issue", "edit", "8", "--milestone", "0"))
 	require.Equal(t, []string{
 		"PATCH /api/v1/repos/alice/project/milestones/3",
-		"PATCH /api/v1/repos/alice/project/milestones/4",
 		"POST /api/v1/repos/alice/project/issues",
 		"PATCH /api/v1/repos/alice/project/issues/8 milestone=3",
 		"PATCH /api/v1/repos/alice/project/issues/8 milestone=0",
@@ -187,5 +186,5 @@ func TestMilestonesAcceptTitlesOrIDs(t *testing.T) {
 	} {
 		require.ErrorContains(t, run(test.args...), test.want)
 	}
-	require.Len(t, calls, 6)
+	require.Len(t, calls, 5)
 }