fix(ui-library): props alignment form label

[RubirajAccenture]

closes #781

[davidken91]

It looks like a unit test is failing for form label. I think you just need to double check the error class that's being applied

[thrbnhrtmnn]

Hey @RubirajAccenture ,

the updates look good for the Form Label in Storybook, but I saw that now other components that use the Form Label have a Form label in an error state per default. For example the Text Area is showing a Form Label in error state, even if the Text Are is not in an error state. Could you check that again?

Also I found two small other thing on the Form Label Storybook page:

• All the section titles "Appearance", "Content / Settings" & "Validation" are having a bigger bottom-margin in the table of content than on other pages, resulting in big spaces in-between the table of content
• The example story in the "Label Appendix" section is showing 3 Form Labels in the sizeVariant LG, but other examples are mostly showing the sizeVariant MD. Could you change the "Label Appendix" Story to use MD size for all 3 labels?