makes indents and separators more important

One more attempt

```
pr 0:
  ☐ pr 0
☐ noproject
--- ✄ -----------------------
  ☐ noproject
  subpr 0:
    ☐ subpr 0
    subsub 0:
      ☐ subpr 0 / subsub 0
    ☐ subpr 0
pr 1:
  ☐ pr1
  sub 1:
    ☐ pr 1 / sub 1
  ---- ✄ -----------------------
    ☐ pr1
```

Tasks' names show what tag project they'll get after archiving