Added content description for star button

[Yogeshjindal]

Fixes #8218
Added description for the star button.

Expected behavior
TalkBack says the purpose of the button, such as "star" or "favorite".

Old Actual behavior
TalkBack says "unlabeled button" and does not convey the purpose of the button.

New Actual behavior
TalkBack says the purpose of the button, such as "star" .

[wmontwe]

Thank you for your contribution. Please add the new string under values-en instead of values-hy as English is the default language for translations in the project.

[Yogeshjindal]

Thanks for reviewing , the asked changes had been made.

[kewisch]

@Yogeshjindal Thanks for the quick changes! The file this needs to go in to is actually legacy/ui/base/src/main/res/values/strings.xml which holds the en-US base strings. Would you mind updating your PR once more? We'd love to get this into beta 2 which we're spinning later today, if you don't have time beforehand we can make the update.

[kewisch]

@Yogeshjindal If you could also look at the linting failures please I'd appreciate.

[Yogeshjindal]

@Yogeshjindal If you could also look at the linting failures please I'd appreciate.

Sure Sir, I will look into that.
Thanks for merging the PR.