Update messages for livepatch

[dheyay]

Fixes: #3063

Why is this needed?

This PR solves all of our problems because...

Test Steps

Checklist

• I have updated or added any unit tests accordingly
• I have updated or added any integration tests accordingly
• Changes here need to be documented, and this was done in:

Does this PR require extra reviews?

• Yes
• No

[github-actions]

Jira: This PR is not related to a Jira item. (The PR title does not include a SC-#### reference)

GitHub Issues:

• Fixes: Bug: livepatch say "covered" not "supported" #3063

Launchpad Bugs: No Launchpad bugs are fixed by this PR. (No commits have LP: #### references)

Documentation: The changes in this PR do not require documentation changes.

👍 this comment to confirm that this is correct.

[github-actions]

🌎 This PR changes translatable messages. 🌏

Please select which scenarios apply. For further explanation, please read our policy on message changes.

• New messages are being added.
  • We will ask translators to take a look and add translations if they have time, but it will not block this PR.
• Existing messages are being changed.
  • ⚠️ Please add a comment with justification of why messages are being altered.
  • If the changes are trivial (e.g. a typo fix), then translations must be preserved.
  • If the changes are substantial, then we will ask translators to take a look and update translations if they have time, but it will not block this PR.
• Existing messages are being deleted.
  • No special action needed.

[dheyay]

🌎 This PR changes translatable messages. 🌏

Please select which scenarios apply. For further explanation, please read our policy on message changes.

* [ ]  New messages are being added.
  
  * We will ask translators to take a look and add translations if they have time, but it will not block this PR.

* [x]  Existing messages are being changed.
  
  * ⚠️ Please add a comment with justification of why messages are being altered.
  * If the changes are trivial (e.g. a typo fix), then translations must be preserved.
  * If the changes are substantial, then we will ask translators to take a look and update translations if they have time, but it will not block this PR.

* [ ]  Existing messages are being deleted.
  
  * No special action needed.

Existing messages are updated to use the word "coverage" instead of "support" which currently implies a relation to other means of support e.g "phone support", etc.

[orndorffgrant]

Thank you! Can you also update LIVEPATCH_KERNEL_NOT_SUPPORTED_DESCRIPTION, LIVEPATCH_KERNEL_NOT_SUPPORTED_UNATTACHED, LIVEPATCH_LTS_REBOOT_REQUIRED, and REALTIME_LIVEPATCH_INCOMPATIBLE for the same reason?

[dheyay]

Updated @orndorffgrant

[orndorffgrant]

Looks like the translations files need to be updated. Also, please keep the po file updates in a separate commit. Something like this should do it.

git reset HEAD~1
git add features uaclient/messages
git commit
./tools/update-pos.sh
git add debian/po
git commit -m "update-pos"

[lucasmoura]

Let's just wait for CI before merging it