Adds layout builder compatibility by swapping out the block instance class for...

Adds layout builder compatibility by swapping out the block instance class for entity reference revisions fields and checking to see if we are in Mercury Editor preview mode

Closes #3384890

added 2 commits

• f44dd63a - Added comments and Cypress test.
• a90a508a - Removed .only from Cypress test.

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added 1 commit

• 2dac5097 - Update drush launcher

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added 1 commit

• a4f65f9f - Require drush with composer in tugboat

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added 1 commit

• f88cbbee - Remove manual drush install

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added 1 commit

• 7c2bc69f - Modify env drush command

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added 1 commit

• 3ccbcfcd - Update cypress drush command

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added 1 commit

• 864406bd - Upgrade npm modules

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closed

reopened