feat: add list of available models in the sidenav

[Gregcop1]

Fix #29

Changes proposed in this pull request:

• [x] header bar with hamburger menu
• [x] list of models in the sidebar
• [x] route for home (empty component)
• [x] route for list (empty component)

@Simperfit

Make sure those checkboxes are checked if you want to be reviewed

• [x] Your branch should be mergeable on current master
• [x] Tests should pass
• [x] Linter should pass
• [x] Code coverage should stay higher than 90%
• [x] Squash your commits to one commit and follow those recommendations about writing good commit message

[coveralls]

Coverage decreased (-0.4%) to 96.226% when pulling bdf11cd1c9d3c83c639f461e8ed3960232baeb8f on Gregcop1:feature/sidenav-29 into a2dcc3664260f31f948bf23470977c6c46fcd6e5 on coopTilleuls:feature/sidenav-29.

[Simperfit]

You have my +1 after the comments :)