Redesign: Apply redesign

[danielgolden]

Overview of changes made:

Redesign toolbar:

• Adds styles for the new toolbar
• Swaps out old <select> elements for <Dropdown> components
• Refactors filter functions to work with new dropdowns
• Adds new "table state" Dropdown into toolbar

Redesign tables:

• Feed the new table component (React Bootstrap Table 2) data in the format that needs.
• Add search to the top of the primary table
• Replace the primary table with the new component
• Replace the agent versions table with the new component
• Style tables according to latest mockup from Redesign groundkeeper UI #3.

Screenshot

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Resolves #3

[claassistantio]

All committers have signed the CLA.

[fightingmonk]

Love the improved table @danielgolden . A few questions on using custom styles vs. just using the standard styles from the NR1 platform.

Two issues I'm noticing:

1. Search performance is pretty bad. With a table of ~ 2,000 entries, there's a multi-second lag before refresh when I add or remove a character from the search bar on my 2018 Macbook Pro in Firefox.
2. The agent releases table sits on top of the main table when I narrow my window below ~ 1,100 pixels.

[danielgolden]

We spoke about the rationale behind removing the NRDS.scss stylesheet in slack. This addresses 3 of the comments from the code review, which I have since resolved.

[fightingmonk]

Looks really good! Performance is much improved and the layout bugs in Firefox are gone. I'm going to merge this.

One followup request: sorting by age looks like it's an alphabetical search. Can you add a numeric sort field for that column so (e.g.) 99 weeks sorts lower than 100 weeks? For unknown ? entries, maybe use -1 as the sort value?

[devfreddy]

🎉 This PR is included in version 0.4.0 🎉

The release is available on GitHub release

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