Start the App always in online node mode, if the local node missing more than 5% blocks

[proofy]

Great work from you so far and I like to have a quick view to the new features in the app. Unfortunately this is not possible, because if I use the Wallet one time as local node, it allays downloaded the missing blocks first. I wish I could always open the app without downloading the blocks. Then I could look at the new functions or try them out. Then the block could be downloaded in the background when I want and until then the wallet is linked to an online node. It could then be alerted again on a transaction or end up in a queue until the local node is fully operational.