Repeat Visitor: add additional block keywords

[bluefuton]

Changes proposed in this Pull Request

Based on feedback in our internal call for testing (p1HpG7-6k7-p2), this PR adds additional keywords to help new users discover the Repeat Visitor block.

Testing instructions

Spin up a Jurassic Ninja instance.

Connect Jetpack to your WPCOM account.

Navigate to Settings->Jetpack Constants, check JETPACK_BETA_BLOCKS, and Save.

Navigate to the post editor and click + to add a new block. Try searching for a block with the following terms and make sure that Repeat Visitor is suggested:

• visitor
• hidden
• conditional

[matticbot]

Test live: https://calypso.live/?branch=update/repeat-visitor-keywords

[bluefuton]

This relies on WordPress/gutenberg#13848 which was committed recently but does not appear to have been released yet. It removes the previous 3-keyword restriction on block keywords:

[jsnmoon]

This relies on WordPress/gutenberg#13848

Bummer. This is good to go whenever appropriate.

[bluefuton]

This is good to go whenever appropriate.

Thanks! Exceeding 3 keyword limit actually prevents the block from showing up at all :/ So I'll hold off shipping it until that's resolved.

[bluefuton]

@beaulebens also suggested "return" as a keyword during testing: p8oabR-lg-p2 / #11749

[simison]

WordPress/gutenberg#13848 only removes the error stopping the block from functioning, but the limit still holds. Gutenberg will ignore more than 3 keywords and there are no plans to remove that limitation:

Instead of failing to register a block if more than 3 keywords are given, only return the first 3 by slicing the keywords array.

[bluefuton]

Thanks for clarifying, @simison. I'll close this one.