change "Fast" to "Double" for fees

Author: simonmcl

Kukai Mobile/Modules/Fees/Fees.storyboard

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="22505" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Y6W-OH-hqX">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="32700.99.1234" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="Y6W-OH-hqX">
     <device id="retina6_1" orientation="portrait" appearance="dark"/>
     <dependencies>
         <deployment identifier="iOS"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22504"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22685"/>
         <capability name="Named colors" minToolsVersion="9.0"/>
         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
         <capability name="System colors in document resources" minToolsVersion="11.0"/>
@@ -58,7 +58,7 @@
                                         </constraints>
                                         <fontDescription key="fontDescription" name="Figtree-Bold" family="Figtree" pointSize="16"/>
                                         <inset key="imageEdgeInsets" minX="0.0" minY="0.0" maxX="2.2250738585072014e-308" maxY="0.0"/>
-                                        <state key="normal" title="Fast">
+                                        <state key="normal" title="Double">
                                             <color key="titleColor" name="TxtB6"/>
                                         </state>
                                         <state key="selected">

Kukai Mobile/Services/TransactionService.swift

@@ -36,7 +36,7 @@ public class TransactionService {
 					return "Normal"
 
 				case .fast:
-					return "Fast"
+					return "Double"
 
 				case .custom:
 					return "Custom"