[Draft] Better documentation for notification preferences for On-Call

[Dalje-et]

What does this PR do? What is the motivation?

• Expands on the already existing documentation for personal notification preferences: https://docs.datadoghq.com/service_management/on-call/profile_settings/
• Introduces a guide on how to circumvent do not disturb mode of the end user's device

Merge instructions

Merge readiness:

• Ready for merge

Merge queue is enabled in this repo. To have it automatically merged after it receives the required reviews, create the PR (from a branch that follows the <yourname>/description naming convention) and then add the following PR comment:

/merge

Additional notes

[github-actions]

Preview links (active after the build_preview check completes)

New or renamed files

• https://docs-staging.datadoghq.com/daljeet/onboard-to-mobile-app/service_management/on-call/guides/
• https://docs-staging.datadoghq.com/daljeet/onboard-to-mobile-app/service_management/on-call/guides/configure-mobile-device-for-on-call

Modified Files

• https://docs-staging.datadoghq.com/daljeet/onboard-to-mobile-app/service_management/on-call/profile_settings

[Dalje-et]

moved this from Draft PR to normal PR to see if that prohibited the CI to create a preview. The PR is still a draft

[aliciascott]

moved this from Draft PR to normal PR to see if that prohibited the CI to create a preview. The PR is still a draft

Hi @Dalje-et
Looks like it's breaking from this line // TO DO

[Dalje-et]

Huh, interesting. Thanks Alicia!

[cswatt]

added DOCS-9808 to review