* wip -- add modal component using ember-wormhole, add static content but still need to enable onClose

* add onClose to modal

* WIP

* add copy and close button

* add copy and close button

* and copy and close button to modal

* use modal on each key action page

* make text copied text more generic

* update datakey textareas to codemirror

* only show user input on encrypt and decrypt

* only show user input on all key actions

* separate copy ciphertext, plaintext, and close button on datakey modal

* style ciphertext and plaintext as code

* only show separate copy buttons on datakey modal if both outputs are shown

* update modal styling

* style modal

* add descriptions to each key action

* remove conditional from hmac modal since we only ever show hmac output

* add modal for export key action

* make output scroll horizontally with copy button next to it

* make output scroll horizontally with copy button next to it

* escape...