Convert the NetBox UI to use Tabler

[jeremystretch]

NetBox version

v3.4.7

Feature type

New functionality

Proposed functionality

Rewrite the NetBox UI to use the Tabler UI kit. Like the current UI, Tabler is built using the Bootstrap CSS framework, but offers many additional features and components natively.

This will be a huge task, and further exploration is needed to better estimate the amount of work required. This FR will be updated with additional details concerning the proposed implementation as research progresses.

Use case

Tabler will allow us to achieve more consistent UI styling application-wide, while obviating the need for much of our custom code. Some of its benefits are listed below:

• Application-focused design
• Native dark mode
• Robust layouts & navigation components
• Broader selection of UI components

Database changes

None

External dependencies

This will introduce the Tabler library as a new dependency.

[bluikko]

I hope that this would not:

• increase amount of padding/whitespace horizontally or vertically;
• limit the amount of data that fits tables horizontally.

Already there are some suboptimal behaviors in this sense, as witnessed by some issues that were opened around 3.0 (but never addressed).