Conditional redirect on login

[davehorsfall]

Description

PR that adds a conditional redirect on login for users. If the user has already defined skills, they are redirected to their skill profile. Otherwise, they are sent to the self-assessment page to set up their skills.

Also

• Added authenticated requirement to the skill profile page
• Renamed the self-assess.html template to user_self_assess.html for consistency with other templates

Fixes #166

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)
• Technical work (non-breaking, change which is work as part of a new feature)
• 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. mkdocs serve)
• 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))

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 3 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
main/views.py	66.66%	3 Missing ⚠️

📢 Thoughts on this report? Let us know!

[davehorsfall]

Supersedes #479