qml: Allow TextFields to be selectable in RequestPayment

Author: johnny9

src/qml/controls/LabeledTextInput.qml

@@ -40,6 +40,7 @@ Item {
         color: Theme.color.neutral9
         placeholderTextColor: Theme.color.neutral7
         background: Item {}
+        selectByMouse: true
         onTextEdited: root.textEdited()
     }
 

src/qml/pages/wallet/RequestConfirmation.qml

@@ -107,6 +107,7 @@ Page {
                     placeholderText: "0.00000000"
                     text: request.amount
                     enabled: false
+                    selectByMouse: true
                     onTextChanged: {
                         bitcoinAmountText.text = bitcoinAmount.sanitize(bitcoinAmountText.text)
                     }

src/qml/pages/wallet/RequestPayment.qml

@@ -89,6 +89,7 @@ PageStack {
                             placeholderTextColor: Theme.color.neutral7
                             background: Item {}
                             placeholderText: "0.00000000"
+                            selectByMouse: true
                             onTextEdited: {
                                 amountInput.text = bitcoinAmount.sanitize(amountInput.text)
                             }