166 UI create app landing page

[sbland]

Description

WIP update app home to show skill wheel as start of Skill Dashboard

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))

New State

[sbland]

@davehorsfall just the last commit that has useful stuff for this PR

[davehorsfall]

Thanks @sbland. As this PR is branched from 157-ui-setup-header-and-menu-navigation, it includes several commit that would be tricky to unpick. I've created a new PR #493 that performs the redirect from the view.py file. Will close this PR.