Fix res2df import common (#1331)

Co-authored-by: Anders Fredrik Kiær <31612826+anders-kiaer@users.noreply.github.com>

Author: andreas-el

webviz_subsurface/_datainput/well_completions.py

@@ -15,7 +15,8 @@
 # NOTE: Functions in this file cannot be used
 #       on non-Linux OSes.
 try:
-    from res2df.resdatafiles import ResdataFiles, common
+    from res2df import common
+    from res2df.resdatafiles import ResdataFiles
 except ImportError:
     pass