fix: don't estimate gas before when displaying sticker packs

Fixes: #1728

ui/shared/status/StatusStickerMarket.qml

@@ -17,10 +17,6 @@ Item {
     signal updateClicked(int packId)
     signal buyClicked(int packId)
 
-    Component.onCompleted: {
-        walletModel.getGasPricePredictions()
-    }
-
     GridView {
         id: availableStickerPacks
         width: parent.width

ui/shared/status/StatusStickerPackPurchaseModal.qml

@@ -12,6 +12,11 @@ ModalPopup {
     property int stickerPackId: -1
     property string packPrice
     property bool showBackBtn: false
+
+    Component.onCompleted: {
+        walletModel.getGasPricePredictions()
+    }
+
     //% "Authorize %1 %2"
     title: qsTrId("authorize--1--2").arg(Utils.stripTrailingZeros(packPrice)).arg(asset.symbol)