bottom validation message should render only if validation message sent

[adids1221]

Description

TextField bottom view should render the validationMessage only if the user passed validationMessage.
Currently the validationMessage renders most of the times because the default value for validationMessagePosition is bottom and break the alignment when the user passes bottomAccessory by it self.

Changelog

TextField bottom view should render the validationMessage only if the user passed validationMessage.

Additional info

[Inbal-Tish]

@adids1221 Can you please check if this change doesn't break the charCounter, when renders alone, from being pushed to the right

[adids1221]

As we spoke it's doesn't break it, it works fine 👍

[ethanshar]

@adids1221 @Inbal-Tish
We are reverting this change.
The validation message was meant to be rendered in any case because it's keeping the space for the message. Otherwise we'll have "jumps" in the screen