Remove "back to lisk.io" from login page

[faival]

Expected Behaviour

• There should not be a link giving the impression of a back button in login page (user might have come from lisk.io or by direct hit, or in electron app).

To avoid confusion for the user, let's rename the link to "Go to lisk.io", and change the orientation of the arrow to indicate a forwarding action instead of a back action.

Actual Behaviour

• User can find a link with the look and feel of a back button.

[itssujan]

@faival I went ahead with this small fix as its my first contribution to this project. I later realized that its assigned to you. Hope I didn't step on your toes...

[michaeltomasik]

@itssujan Thank you for contributing 😄 We will be adding good first issue label on tasks that We think will be good for people that want to start contributing 🖥

[itssujan]

@michaeltomasik that's cool...Look forward to being a regular contributor to Lisk...

[faival]

@itssujan please review requirement changes to this issue, thanks.

[itssujan]

@faival cool..i'll make the changes and open a PR

[itssujan]

@faival Would this be good? The forward arrow looks odd though :)