fix: it should be possible to enter gas prices with decimals

src/app/wallet/views/gas.nim

@@ -52,22 +52,21 @@ QtObject:
     result.setup
 
   proc getGasEthValue*(self: GasView, gweiValue: string, gasLimit: string): string {.slot.} =
-    var gweiValueInt:int
     var gasLimitInt:int
 
-    discard gweiValue.parseInt(gweiValueInt)
     discard gasLimit.parseInt(gasLimitInt)
 
     # The following two check prevents app crash, cause we're trying to promote 
     # gweiValueInt and gasLimitInt to unsigned 256 int, and these two numbers
     # must be positive numbers, because of overflow.
-    if (gweiValueInt < 0):
-      gweiValueInt = 0
+    var gwei = gweiValue.parseFloat()
+    if (gwei < 0):
+      gwei = 0
     
     if (gasLimitInt < 0):
       gasLimitInt = 0
     
-    let weiValue = gweiValueInt.u256 * 1000000000.u256 * gasLimitInt.u256
+    let weiValue = gwei2Wei(gwei) * gasLimitInt.u256
     let ethValue = wei2Eth(weiValue)
     result = fmt"{ethValue}"