Respect `ImportQualifiedPost`?

## Is your enhancement request related to a problem? Please describe.

I often ask HLS to import stuff for me. For example, if I write `Text.toLower`, I can then ask HLS to `import qualified Data.Text as Text` — fantastic! However, I often have the extension `ImportQualifiedPost` on, so my imports should look like `import Data.Text qualified as Text`. I have to make this change by hand.

## Describe the solution you'd like

I want HLS to see that `ImportQualifiedPost` is on, and write qualified imports appropriately.

## Describe alternatives you've considered

I can format with `ormolu` or `fourmolu` — it automatically respects `ImportQualifiedPost`. But this is another distraction, another step that needs to be consciously and appropriately executed. Only a few of the projects I work on are thoroughly automatically formatted, and I cannot blindly format a file because this would incur an outsized diff. Therefore, I should have to tell the formatter which lines to format. This is too hard — I should be better off repairing the problematic import line by hand.