use Black's default line length of 88

[grische]

Split from #47

Line length of 80 vs 88

I removed the line-length of 80 from the pyproject.toml, as it reduced the changes down to 60% (182 vs 117 inserts):

With a line-length of 80:

All done! ✨ 🍰 ✨
5 files reformatted, 2 files left unchanged.
 morgan/__init__.py     |  91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++--------------------------
 morgan/configurator.py |  39 ++++++++++++++++++++-------------------
 morgan/metadata.py     |  34 +++++++++++++++++++++-------------
 morgan/server.py       | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----------------------------------------------------
 morgan/utils.py        |  13 +++++++------
 pyproject.toml         |   7 +++++++
 6 files changed, 182 insertions(+), 117 deletions(-)

With black's default (=88):

All done! ✨ 🍰 ✨
5 files reformatted, 2 files left unchanged.
 morgan/__init__.py     |  18 ++++++++----------
 morgan/configurator.py |  39 ++++++++++++++++++++-------------------
 morgan/metadata.py     |  34 +++++++++++++++++++---------------
 morgan/server.py       | 113 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------------------------
 morgan/utils.py        |  13 +++++++------
 pyproject.toml         |   8 +++++++-
 6 files changed, 117 insertions(+), 108 deletions(-)