[SM-264] Export UI changes

[cd-bitwarden]

Type of change

- [ x ] Bug fix
- [ ] New feature development
- [ ] Tech debt (refactoring, code cleanup, dependency upgrades, etc)
- [ ] Build/deploy pipeline (DevOps)
- [ ] Other

Objective

UI did not look like it was supposed to, it ended up being that we aren't using the storybook component properly

Code changes

Update export.component.html to use the component properly

Added a period to the messages for EN and ENG_GB

Before you submit

• Please add unit tests where it makes sense to do so (encouraged but not required)
• If this change requires a documentation update - notify the documentation team
• If this change has particular deployment requirements - notify the DevOps team

[Hinton]

I believe this was resolved with the #4057

[cd-bitwarden]

This has been addressed with #4057