feat: add option to filter instance by specific tag key in ask

[codezninja]

Description

This adds support to add a tag to the default table being created on AskInstances so I can filter by values using the build in fuzzy matching. This was useful where my instance names tend to be random and tags are what we use to filter down application instances

$ go run . start -f application
region (us-east-1)
? Choose a target in AWS:  [Use arrows to move, type to filter]
> dev-1234515   (i-7ce6c6743q4523453)   (application:golden-doodle)
  dev-234f23f   (i-c07bf9dcs0d334d3d)   (application:op)
  dev-123423g   (i-03eec57b482e16b4a)   (application:NONE)
  dev-346ywr4   (i-0061763ab68341969)   ()