Make description attribute static

Hmm, seems the description can't be read from an attribute, why? Anyway,
it's not like it changes often. Lets copy it, and add a note to change
the python code to read from importlib.metadata, if we even want to?

TODO:
* compare the output file-by-file of pip install -e before and after
* compare the output file-by-file of setup.py install/build/wheel or
  whatever and the corresponding build commands (and update makefile)
* think about removing stuff that isn't used from `__init__.py`, or
  making it read from importlib.metadata
* see how it looks with hatch (dynamic bits and build hooks)

pyproject.toml

@@ -4,6 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "qutebrowser"
+description = "A keyboard-driven, vim-like browser based on Python and Qt."
 # What about the other libs in requirements.txt?
 dependencies = [
   "jinja2",
@@ -41,7 +42,6 @@ classifiers = [
 # https://discuss.python.org/t/please-make-package-version-go-away/58501/11
 dynamic = [
   "version",
-  "description",
 ]
 
 [project.urls]
@@ -57,8 +57,10 @@ funding = "https://github.com/qutebrowser/qutebrowser/blob/main/README.asciidoc#
 qutebrowser = "qutebrowser.qutebrowser:main"
 
 [tool.setuptools.dynamic]
-version = {attr = "qutebrowser.__version__"}
-description = {attr = "qutebrowser.__description__"}
+# We can't import a variable from qutebrowser/__init__.py because when we put
+# "qutebrowser" here setuptools resolves that to "qutebrowser/qutebrowser.py".
+# So just import the attribute from that qutebrowser.py file.
+version = {attr = "qutebrowser.qutebrowser.__version__"}
 
 [tool.setuptools.packages.find]
 include = ["qutebrowser", "qutebrowser.*"]  # package names should match these glob patterns (["*"] by default)

qutebrowser/qutebrowser.py

@@ -23,6 +23,7 @@ import sys
 import json
 
 import qutebrowser
+from qutebrowser import __version__
 try:
     from qutebrowser.misc.checkpyver import check_python_version
 except ImportError:

setup.py

@@ -40,7 +40,7 @@ import setuptools
 # * version=_get_constant('version'),
 #   * dynamic in setuptools
 # * description=_get_constant('description'),
-#   * dynamic option in setuptools
+#   * support reading from file, but not attribute
 # * author=_get_constant('author'),
 # * author_email=_get_constant('email'),
 #   * both not dynamic and don't change much, duplicate or move
@@ -48,6 +48,7 @@ import setuptools
 #   * not dynamic, it's also not used anywhere else and doesn't change often
 #   * just duplicate it and leave a comment or move it completely
 #
+# Move duplicated stuff in __init__ to use importlib.metadata?
 
 # Args to setup()
 # https://setuptools.pypa.io/en/latest/userguide/pyproject_config.html#setuptools-specific-configuration