C++ GA Fast Follows

[dacharyc]

Pull Request Info

This ticket incorporates a few outstanding review comments from #3140, and it updates the unit test suites to use the release version - v1.0.0.

• CRUD/Filter Data: Update the note about supporting a subset of RQL and make it an include.
• Sync Data/Manage Sync Subscriptions: Add the note about C++ supporting a subset of RQL to the section about subscribing to objects that match a query.
• Realm Files: Add ToC to the blank container page in case someone navigates to it.

Review Guidelines

REVIEWING.md

[github-actions]

Readability for Commit Hash: d15411f

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

Readability scores for changed documents:

• source/sdk/cpp/realm-files: Grade Level: 5.6, Reading Ease: 65.39
• source/sdk/cpp/sync/sync-subscriptions: Grade Level: 7.1, Reading Ease: 66.94
• source/sdk/cpp/crud/filter-data: Grade Level: 8.7, Reading Ease: 57.37

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.

[docs-builder-bot]

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

🪵 Logs

• job log: c7a44f5118be37270cc0c47a9c0d14ec85e94437