UI/obscure secret on input

[Monkeychip]

This PR is a project to Obscure Secret Values on input, and to also obscure certificates on display. There is an option in both of these to toggle on/off the obscured view. To accomplish this, design created a new font called "obscure.woff". We now default to using this font on any input or text-area for either masked-input components and text-file components.

The following are screenshots of places were secrets are now obscured by default:

• Shamir keys

• Anytime we display a secret value, via masked-input @displayOnly=true

• Generate credentials (database secret engine example)

• KV Secret engine Copy -> Generate wrap

• No longer displaying certificates on default, but masking them and truncating the output. The user can then opt to see the certificate.

Notes:

• I was able to glimmerize/update the text-file component, but I was not able to glimmerize the masked-input component. I suspect the latter is because of the use of a partial in the component chain.
• For the pgp-file.hbs component, eventually, we will want to replace this with the text-file component. See start of code here. However, it would require some additional refactoring and be beyond the scope of this project. Currently, this is the only area in the application where you find the upload file but do not see the option to mask/unmask when entering as text.

[hashishaw]

Looks great overall! A couple small updates, and I'm going to pull down the branch and try to break it 😁

[hashishaw]

Looks great! Thanks for making these changes