Synchronize docs develop

.github/CODEOWNERS

@@ -1,2 +1,5 @@
 # Set Ivar Stefansson and Eirik Keilegavlen as global owners
 * @keileg @IvarStefansson
+
+# Make vlipovac code owner of the docs folder
+docs/* @vlipovac

mypy.ini

@@ -6,15 +6,9 @@
 mypy_path = src/porepy
 
 
-# EK: It is not at all clear to me what to do with various libraries such as numpy etc.
+# EK: It is not at all clear to me what to do with various libraries such as scipy etc.
 # For the moment, ignore some of them (seems to be done as below), and hope my understanding
 # improves in the future.
-[mypy-numpy]
-ignore_missing_imports = True
-[mypy-numpy.matlib]
-ignore_missing_imports = True
-[mypy-numpy.linalg]
-ignore_missing_imports = True
 
 [mypy-scipy]
 ignore_missing_imports = True

src/porepy/fracs/fracture_importer.py

@@ -1,4 +1,5 @@
 import csv
+from typing import Optional
 
 import gmsh
 import numpy as np
@@ -403,7 +404,9 @@ def dfm_3d_from_fab(
         return mdg
 
 
-def network_3d_from_fab(f_name: str, return_all: bool = False, tol: float = None):
+def network_3d_from_fab(
+    f_name: str, return_all: bool = False, tol: Optional[float] = None
+):
     """Read fractures from a .fab file, as specified by FracMan.
 
     The filter is based on the .fab-files available at the time of writing, and