fix(codegen): fix recarray variable docstring rendering

[wpbonelli]

Fix #2599. Recarray columns were missing. Now mfgwegwe.py looks OK. Hopefully didn't break anything else

exchangedata : [(cellidm1, cellidm2, ihc, cl1, cl2, hwva, aux, boundname)]
        * cellidm1 : integer
                is the cellid of the cell in model 1 as specified in the simulation name file.
                For a structured grid that uses the DIS input file, CELLIDM1 is the layer, row,
                and column numbers of the cell.   For a grid that uses the DISV input file,
                CELLIDM1 is the layer number and CELL2D number for the two cells.  If the model
                uses the unstructured discretization (DISU) input file, then CELLIDM1 is the
                node number for the cell.
        * cellidm2 : integer
                is the cellid of the cell in model 2 as specified in the simulation name file.
                For a structured grid that uses the DIS input file, CELLIDM2 is the layer, row,
                and column numbers of the cell.   For a grid that uses the DISV input file,
                CELLIDM2 is the layer number and CELL2D number for the two cells.  If the model
                uses the unstructured discretization (DISU) input file, then CELLIDM2 is the
                node number for the cell.
        * ihc : integer
                is an integer flag indicating the direction between node n and all of its m
                connections. If IHC = 0 then the connection is vertical.  If IHC = 1 then the
                connection is horizontal. If IHC = 2 then the connection is horizontal for a
                vertically staggered grid.
        * cl1 : double precision
                is the distance between the center of cell 1 and the its shared face with cell
                2.
        * cl2 : double precision
                is the distance between the center of cell 2 and the its shared face with cell
                1.
        * hwva : double precision
                is the horizontal width of the flow connection between cell 1 and cell 2 if IHC
                > 0, or it is the area perpendicular to flow of the vertical connection between
                cell 1 and cell 2 if IHC = 0.
        * aux : [double precision]
                represents the values of the auxiliary variables for each GWEGWE Exchange. The
                values of auxiliary variables must be present for each exchange. The values
                must be specified in the order of the auxiliary variables specified in the
                OPTIONS block.
        * boundname : string
                name of the GWE Exchange cell.  BOUNDNAME is an ASCII character variable that
                can contain as many as 40 characters.  If BOUNDNAME contains spaces in it, then
                the entire name must be enclosed within single quotes.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.5%. Comparing base (556c088) to head (9f18171).
⚠️ Report is 52 commits behind head on develop.

Files with missing lines	Patch %	Lines
flopy/mf6/utils/codegen/filters.py	0.0%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2614      +/-   ##
===========================================
+ Coverage     55.5%    72.5%   +17.0%     
===========================================
  Files          644      667      +23     
  Lines       124135   128860    +4725     
===========================================
+ Hits         68947    93487   +24540     
+ Misses       55188    35373   -19815     

Files with missing lines	Coverage Δ
flopy/mf6/utils/codegen/filters.py	0.0% <0.0%> (ø)

... and 553 files with indirect coverage changes

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[mwtoews]

Rendering the docs locally, I see that are improved! I don't see any reason why "items" is still used, since this is not part of the present structure. Unless there was some transition?

[mwtoews]

This block is stale (never touched) since there is no "items"

[wpbonelli]

Yeah, no reason to keep this defensively I guess. We pinned devtools anyway