Don't change placeholder text in sidebar
Don't change placeholder text in sidebar

- setTheme only changes placeholder text in the pageNav and obContainer
divs.
- Closes #1269

rmisio/OpenBazaar-Client,OpenBazaar/OpenBazaar-Client,blockchainProject/blockchain-project-client,programmerpeter/OpenBazaar-Client,mariodian/OpenBazaar-Client,rmisio/OpenBazaar-Client,OpenBazaar/OpenBazaar-Client,blockchainProject/blockchain-project-client,mariodian/OpenBazaar-Client,jjeffryes/OpenBazaar-Client,jjeffryes/OpenBazaar-Client,programmerpeter/OpenBazaar-Client