fix: shorter template name due to Triangle max character limit

...ookiecutter.mesh_name}}/polygons/polygon_BeringStrait.txt

...CORE2_{{cookiecutter.mesh_name}}/polygons/polygon_CAA.txt

..._{{cookiecutter.mesh_name}}/polygons/polygon_Canadian.txt

..._{{cookiecutter.mesh_name}}/polygons/polygon_Eurasian.txt

..._CORE2_{{cookiecutter.mesh_name}}/polygons/polygon_FS.txt

...CORE2_{{cookiecutter.mesh_name}}/polygons/polygon_Gib.txt

...E2_{{cookiecutter.mesh_name}}/polygons/polygon_Nordic.txt

...{{cookiecutter.mesh_name}}/polygons/polygon_Nordic_bd.txt

...CORE2_{{cookiecutter.mesh_name}}/polygons/polygon_SPG.txt

...er.mesh_name}}/polygons/polygon_amundsen_nansen_basin.txt

...E2_{{cookiecutter.mesh_name}}/polygons/polygon_arctic.txt

...2_{{cookiecutter.mesh_name}}/polygons/polygon_arctic1.txt

...cookiecutter.mesh_name}}/polygons/polygon_arctic1.txt_old

..._{{cookiecutter.mesh_name}}/polygons/polygon_arctic1.txt~

...2_{{cookiecutter.mesh_name}}/polygons/polygon_arctic2.txt

...cookiecutter.mesh_name}}/polygons/polygon_arctic2.txt_old

..._{{cookiecutter.mesh_name}}/polygons/polygon_arctic2.txt~

...{{cookiecutter.mesh_name}}/polygons/polygon_hudsonbay.txt

...{cookiecutter.mesh_name}}/polygons/polygon_hudsonbay.txt~

...iecutter.mesh_name}}/polygons/polygon_pacific_45N_60N.txt