ui: refactor text file component (#18458)

* wip tests

* Move text-file to addon

* rename fileName to filename, initial cleanup of text-fil

* rename args, rename test selector

* fix eye-con, remove enterAsText from file object

* add tests

* move files back to original location

* rename files via git for git diff

* adjsut test

* Revert "wip tests"

This reverts commit 63716a1e647a0b01236d34322837456ef3e9db43.

* fix policy form input

* cleanup conditional

* add bottom margin

* add element id

* change arg name

* add text area input test

* add upload test to policy form

Co-authored-by: Chelsea Shaw <cshaw@hashicorp.com>

ui/app/components/pgp-file.js

@@ -54,7 +54,7 @@ export default Component.extend({
       // If after decoding it's not b64, we want
       // the original as it was only encoded when we used `readAsDataURL`.
       const fileData = decoded.match(BASE_64_REGEX) ? decoded : b64File;
-      yield this.onChange(this.index, { value: fileData, fileName: filename });
+      yield this.onChange(this.index, { value: fileData, filename: filename });
     })
   ),