[Feature]: Validations for inline editing in input widget

[dilippitchika]

Is there an existing issue for this?

• I have searched the existing issues

Summary

Add validations to the input widget within the table

Why should this be worked on?

Completes the input inline editing flow

[dilippitchika]

2 flows

1. How does a dev configure validations in an input widget
2. How will the end user work with validations

Dev configuring validations
When type is plain text - The following configurations can be done borrowed from the input widget

1. Required - Is the field required or not
2. Regex - Is the field fitting certain regex criteria
3. Valid - Is there any other criteria the field should fit
4. Max characters
5. Error message - What is the error message to show when it's invalid.

These need to be grouped in a new group called validations

Need to flesh out a full blown PRD with @sbalaji1192 and @momcilo-appsmith