[accessibility] add label to the subscribe from and hide it visually.

[nisarhassan12]

Fixes #1164

[shcheklein]

@nisarhassan12

If the input is already labeled visually some other way, such as through a magnifying glass icon on a search submit button, it may be acceptable to use aria-label to create an invisible text label for screen readers to read.

would it be eiasier?

[nisarhassan12]

@nisarhassan12

If the input is already labeled visually some other way, such as through a magnifying glass icon on a search submit button, it may be acceptable to use aria-label to create an invisible text label for screen readers to read.

would it be eiasier?

@shcheklein Thanks for pointing this out I have updated the Pr accordingly. Indeed this is orders of magnitude easier.