[IX] - Misbehavior on multi-select (and maybe select) value selector

[txau]

Describe the bug
On this control:

Apparently there is a limit to the amount of values, resulting in some values never appearing. Search function only iterates over the limited list, so there is no way to get the over flooding values.

To Reproduce
Steps to reproduce the behavior:

1. Create an extractor for a multi-select with a long list of values (I don't know the limit). In this case it is a relationship property connected to 425 entities.
2. Some values are not accessible, they appear in no particular order.

Note. This could be happening for selects, multi-selects and relationship fields. A working example here: https://cejil-test.dev.uwazi.io/es/settings/metadata_extraction/suggestions/675b18c6f21e5730e448f6ea

[aphilop]

@txau During the discussion in the product call, it came out that this seems not to be a bug, as it does what was decided in previous discussions, see #6800.
We can handle this as an enhancement is needed.

[txau]

@aphilop in that issue it states the hard limit is 500, but this list has 425 and they are all not appearing.

[aphilop]

@konzz To check the issue regarding showing less than 500 entries.