Missing locale string when creating vote lock

[grctest]

Describe the bug
There's a missing locale string in the create lock modal.

There's no indication of the benefit of staking for a longer period, there should be an obvious notice of the vote multiplier you get for committing your funds to a longer staking period.

To Reproduce
Go to voting page
Click on create lock
Hover cursor over the drop down

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Additional context
Fixing this could increase the amount of BTS staked.