feat: navbar blade components

[luchaos]

• Port navbar to blade components
• (Re)introduce dropdown components
• Adjustments for small screens (can certainly be improved)
• Adjust policies to move blade components and controllers to model abilities (@can() and authorize())
• Add point variants to navbar

Most of these changes are in preparation for the introduction of the permission matrix and getting rid of the user top card on sub-pages, hence moving point variants to navbar, too.

Increased font size, 4 columns in "Games", ported system icons:

Search input expands on focus, no input on small screens (links to search page instead):

Manage dropdown:

"My pages" dropdown moved to profile menu with avatar:

Small screen variants:

[luchaos]

This is way better. I use search on my tablet all the time. The only thing I'm noticing now is things get a bit wonky on iPhone SE. Other iPhone sizes all work great though.

Targeting iPhone SE's 375px viewport with 1,000,000 points in: 6bb3605

[Tsearo]

I wasn't able to reproduce the nav bar error at first but then tried a few different device sizes and could reproduce with Nest Hub Max (1280x800) at 95% zoom (100% zoom did not have the effect)

Will re-review later today