Increase the amount of clients the sidecar configs can be assigned to from a max of 100 to 1000

[ed-graylog]

What?

When assigning configs for the sidecar we are limited to only 100 at any given time.

Why?

If we have for example 1000 sidecar clients, we have to click through several pages to assign this. It would be easier if boosted this to 1000 limit for ease of use.

Please see HS 1480820088 for additional context.

[kroepke]

We probably need to figure out a better UI for selecting many sidecars (more than one page, anyway).

[itg-dave]

You can use tags for auto assigning configurations.

assume this sidecar configuration:

# sidecar.yml
...
tags: ['default', 'webserver', 'app2']

If you now add a configuration in Graylog UI and assign a tag to it, all sidecars with matching tags will receive this config automatically.