Update copy on /core/features

[britneywwc]

Done

• Apply copy update - copy docs

QA

• Go to https://ubuntu-com-13901.demos.haus/core/features, compare with copy doc
• Changes in meta tag and minor text update under security's strict confinement

Issue / Card

Fixes WD-11700

Screenshots

[If relevant, please include a screenshot.]

Help

QA steps - Commit guidelines

[webteam-app]

Demo

Jenkins

demos.haus