Property name enforces lowercase instead of lowerCamelCase

[Ceremony64]

Describe the bug When defining a new property, its name is always enforced to be lower case. Thus entering myNewProperty results in mynewproperty. This obviously impacts compatibility with previous extension generated with extension_builder and also affects the database columns, as lowerCameCase was previously translated to lower_camel_case.

Also, when trying to "correct the bug", a discrepancy between input and resulting property name pops up:

Expected behavior Like before, allow and encourage the use of lowerCamelCase for properties:

TYPO3 Version v12.4.11

Extension Builder Version: dev-typo3-12-reactjs

P.S. #723 is somewhat related