Extend the dynamic implementation of oik-block/blocklist to "Determine updates to apply"

[bobbingwide]

In bobbingwide/oik-blocks#57 I've added a new toggle for the oik-block/blocklist block.
Labeled "Determine updates to apply" this toggle can be used to indicate to the oik-shortcodes plugin that it should extend the dynamic processing of the oik-block/blocklist block.

Requirement

• Improve ability to determine which blocks need to be newly catalogued, updated or deleted.
• Automatically add blocks during server rendering of the block list, for particular settings.

Proposed solution

• Extend the dynamic rendering of the oik-blocks/blocklist block by implementing a filter function for render_block_oik-block/blocklist.
• When the determineUpdates attribute is true, showBatch is true, and showBlockLink is true then extend the processing to determine, and potentially apply, updates to the blocks catalogued for the selected component.
• The server logic should take into account the showVariations setting. When it's false then it shouldn't report registered variations as needing deletion.
• The server logic should also take into account each block's prefix, which is different from the component.

[bobbingwide]

The server logic should also take into account each block's prefix, which is different from the component.

For the Stackable plugin there are 28 blocks which are prefixed ugb - version 2 blocks. When processing the list of blocks prefixed ugb any blocks prefixed stackable should be ignored. Similarly for stackable; ignore ugb blocks.

[bobbingwide]

The dynamic rendering should only be performed when the block is being processed on the front end, not during save.
How do we check for this?

[bobbingwide]

Released in v1.41.2