Fixes https://github.com/twentyhq/twenty/issues/17544
**Problem**
When users create custom objects with short acronym names like "O&J",
the system generates an object name oJ. When creating relation fields,
the morph field name was built using string concatenation:
const morphFieldName = `target${capitalize("oJ")}`; // → "targetOJ"
This produced "targetOJ", which failed validation because the camelCase
check performed in `validateFlatFieldMetadataName` (camelCase(name) ===
name) returns "targetOj" for "targetOJ". The issue comes from
consecutive camelCase() operations.
**Solution**
Actually, the `camelCase(name) === name` check is questionnable.
What we want to check is that a name is in camelCase format, not that it
corresponds to the camelCase version of a given string, while that's we
are doing here. lodash does not provide camelCase validator, only
camelCase convertor, so we used it as a way to validate the format of
the name.
We may feel like `camelCase(name) === name` checks whether a name is
camel-cased, but in addition to that it is also checking for a camel
case "idempotency" we don't necessarily have and do not need: for
instance if an object's name is "iOS" (which could be inferred from a
label "I O S"), it won't pass the check: camelCase("iOS") is "ios" and
"ios" !== "iOS".
The existing check with
`STARTS_WITH_LOWER_CASE_AND_CONTAINS_ONLY_CAPS_AND_LOWER_LETTERS_AND_NUMBER_STRING_REGEX`
acts as a camel case validator, so we don't need that camelCase() check.
