"Crawler Instances" → "Browser Windows"

[Shrinks99]

Context

Currently the "Crawler Instances" setting is a bit confusing. Users don't have a good sense of what a "Crawler Instance" is, or that each instance can contain multiple browsers. We try to communicate this with "scale" values, implying a multiplier, but this still isn't as clear as perhaps it could be.

Tasks

• [x] Add num browsers to /api/settings
• [x] Move control to "Browser Settings"
• [x] Relabel setting to "Browser Windows"
• [x] Communicate to users the number of browser windows they should expect if they choose each option
  • Relabel from "1×, 2×, etc" to "4, 8, 16, etc" to according to the values in the back end for how many browsers should be assigned to each instance
• [x] @Shrinks99 Update docs accordingly!

[SuaYoo]

@Shrinks99 How would you reword this?

Aggregated time across all crawler instances that the crawler was actively executing a crawl or QA analysis run, i.e. not in a waiting state

"Aggregated time across all crawler browsers"?

[Shrinks99]

I think just "Aggregated time across all browser windows" now that there's a 1–1 mapping of browsers to controls? We're hopefully throwing out the idea of a "crawler instance" for users for good!