This commit simplifies block style variation class name generation to ensure unique class names by replacing the hashing of block attributes in the block style variation class names with a call to `wp_unique_id`.
Doing so avoids potential for non-unique class names and conflicting styles when exact copies of a block are inserted via a repeated pattern.
Props aaronrobertshaw, martinkrcho, mukesh27, peterwilsoncc, ramonopoly.
Fixes#61877.
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These changes involve:
- Move shared variation definitions from styles.blocks.variations to styles.variations
- Remove blockTypes from styles.variations.
- Do not register shared variations from theme style variation or primary theme.json files.
- Move the merging of theme.json data into the WP_Theme_JSON_Resolver and WP_Theme_JSON classes.
These changes improve performance and are more future-proof API wise.
See conversation at https://github.com/WordPress/gutenberg/issues/62686
Props aaronrobertshaw, oandregal, andrewserong, joemcgill, talldanwp, andrewserong, ramonopoly, richtabor, youknowriad.
See #61312, #61451.
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ramonopoly
talldanwp
ellatrix
oandregal
noisysocks