Consistent sort order in dashboard drop-down filter lists

Hi, currently dropdown filters (Replication Set, Environment, etc) are not sorted consistently. With longer lists this makes for more difficult readability (just like this sentence haha).

We should set a sort order on all dropdowns. For example Replication Set on MySQL Instances Overview shows this in 2.7:

We should instead set it to Alpha case-insensitive for every drop down on all dashboards