Refactor transactions code from currency_tab to transactions_tab
Improve wallets tab display in fullscreen

- Segfault due to double mutex lock
- Couldnt start on due to missing CA signing github

Changing texts in key creation

Changing texts in key creation

- Wallet was displaying too many certifications
- Bug in community refreshing when a new block was mined

- UID parsing in selfcert
- Old contacts format in certify

Fixed account creation bugs since last small refactoring