Make process table sortable

[cc-a]

Description

Adds the view function logic to make the process table on the index page sortable. You can now click the header of each column to sort by its contents.

Fixes #42

Type of change

• Documentation (non-breaking change that adds or improves the documentation)
• New feature (non-breaking change which adds functionality)
• Optimization (non-breaking, back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (whatever its nature)

Key checklist

• All tests pass (eg. python -m pytest)
• The documentation builds and looks OK (eg. python -m sphinx -b html docs docs/build)
• Pre-commit hooks run successfully (eg. pre-commit run --all-files)

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added or an issue has been opened to tackle that in the future. (Indicate issue here: # (issue))

[dalonsoa]

Seems to work, but absolutely nothing in the code seems to suggest that by doing this the table becomes sortable. Might be worth adding a comment somewhere indicating why we are doing what we are doing...

[AdrianDAlessandro]

Second what Diego said, a comment to explain what this line is doing would be nice.

Is this necessary because we're manually building the table with a list and dict instead of via database models and the provided generic views in django-tables2?

[cc-a]

Is this necessary because we're manually building the table with a list and dict instead of via database models and the provided generic views in django-tables2?

No, it's just the way that django tables 2 handles things like sorting and pagination. There are get parameters included in the request that it processes and uses to sort contents of the table.