Sync ui and add a document for adding menus to booster UI

[Fine0830]

• If this pull request closes/resolves/fixes an existing issue, replace the issue number. Closes #.
• Update the CHANGES log.

• Remove All from the endpoints selector.
• Enhance menu configurations to make it easier to change.
• Add a document for adding menus to booster UI.

Signed-off-by: Qiuxia Fan qiuxiafan@apache.org

[wu-sheng]

@Fine0830 I polished the doc a little to make it shorter and add explanations as the comments. PTAL.

[Fine0830]

@Fine0830 I polished the doc a little to make it shorter and add explanations as the comments. PTAL.

It's good to me.