[#42923415] Change the view-path so plugin comes before default and tenant comes before default

This changes the search order for view templates to this:
1. canvas-os / tenant specific
2. canvas-os
3. application / tenant specific
4. application
5. other plugins
[#42923415] WIP: add bootstrap-dropdown js library
[#42996115] WIP: debranding and reorganizing markup/css
Merge branch 'feature/de-branding' into develop