Exchange inputs editing bug

[Skept0x]

Editing inputs glitch when editing numbers >= 1,000.000 on DEX (All inputs).

[davestaxcp]

This can be confusing at first, but I tried my best to explain why this is auto filled and the best way to input Buy and Sell Orders on the DEx here in this draft of the Freewallet FAQ: https://gist.github.com/davestaxcp/1e2cc086a13c9a2d045876852b57e5be#buying-and-selling-xcp-and-tokens-on-the-dex

[jdogresorg]

Cleaned up numeric value parsing and validation with commit
d1297eb