Jetpack Focus: Update Jetpack banner text based on the phase

[hassaanelgarem]

Description

Update the text content of Jetpack banners and badges throughout the app.

• Phase one: Text should read "Jetpack powered"
• Phase two: Text should read "Get the Jetpack app"
• Phase three: Text will be dynamic
  • If we can't retrieve the deadline -> “Feature is/are moving soon”
  • If the deadline is more than 1 month away -> “Feature is/are moving soon”
  • If the deadline is more than 1 week away -> “Feature is/are moving in n weeks”
  • If the deadline is less than 1 week away -> “Feature is/are moving in n days”

Ref: pe7hp4-4k-p2
Design Ref: qk5s4q4mZsXknwhMWo2vIY-fi

Tasks

• Update banners' text
• Update badges' text

[hassaanelgarem]

After #19686 is merged, JetpackFeaturesRemovalCoordinator.removalDeadline() can be used to retrieve the deadline. This will be needed in phase three.