DOCSP-34240: Document metadata encryption in Kotlin SDK

[cbullinger]

Pull Request Info

Update existing Encrypt a Realm and Connect to App Services pages with info on App metadata encryption.

Jira

• https://jira.mongodb.org/browse/DOCSP-34240

Staged Changes

• Encrypt a Realm - Kotlin SDK
• Connect to Atlas App Services - Kotlin SDK

Reminder Checklist

If your PR modifies the docs, you might need to also update some corresponding
pages. Check if completed or N/A.

• Create Jira ticket for corresponding docs-app-services update(s), if any
• Checked/updated Admin API
• Checked/updated CLI reference

Review Guidelines

REVIEWING.md

[github-actions]

Readability for Commit Hash: 0413956

You can see any previous Readability scores (if they exist) by looking
at the comment's history.

Readability scores for changed documents:

• source/sdk/swift/realm-files/encrypt-a-realm: Grade Level: 8.9, Reading Ease: 56.76
• source/sdk/react-native/realm-files/encrypt: Grade Level: 9.3, Reading Ease: 55.74
• source/sdk/flutter/realm-database/realm-files/encrypt: Grade Level: 8.8, Reading Ease: 57.16
• source/sdk/node/realm-files/encrypt: Grade Level: 8.6, Reading Ease: 57.67
• source/sdk/kotlin/realm-database/realm-files/encrypt-a-realm: Grade Level: 9.8, Reading Ease: 49.11
• source/sdk/kotlin/app-services/connect-to-app-services-backend: Grade Level: 9.3, Reading Ease: 55.95
• source/sdk/dotnet/realm-files/encrypt-a-realm: Grade Level: 8.7, Reading Ease: 57.47

For Grade Level, aim for 8 or below.

For Reading Ease scores, aim for 60 or above:

Score	Difficulty
90-100	Very Easy
80-89	Easy
70-79	Fairly Easy
60-69	Medium
50-59	Fairly Hard
30-49	Hard
0-29	Very Hard

For help improving readability, try Hemingway App.

[dacharyc]

Overall, LGTM! But since you're tweaking the Encrypt a Realm page here, I wonder if you want to mention something about adding encryption to an existing realm - i.e. recommend writeCopyTo() and link out to the relevant section on the "Configure and Open a Realm" page?

(Or even include the example from that page here so it's on the encryption page?)

[docs-builder-bot]

✨ Staging URL: https://preview-mongodbmongodb.gatsbyjs.io/realm/master/

🪵 Logs

• job log: 2d6438ae99bc353a295cde171ed1cf32f3cad2d7