fix(Browser) Transaction Popup was misaligned

Fixed transaction popup position
Fixed JSDialogWindow title was going
off popup boundaries

Closes #4361

ui/app/AppLayouts/Browser/BrowserLayout.qml

@@ -56,6 +56,7 @@ Rectangle {
 
         // TODO we'll need a new dialog at one point because this one is not using the same call, but it's good for now
         property Component sendTransactionModalComponent: SignTransactionModal {
+            anchors.centerIn: parent
             store: browserWindow.globalStore
             contactsStore: browserWindow.globalStore.profileSectionStore.contactsStore
         }

ui/imports/shared/popups/ModalPopup.qml

@@ -70,6 +70,8 @@ Popup {
                 font.bold: true
                 font.pixelSize: 17
                 height: visible ? 24 : 0
+                width: visible ? parent.width - 44 : 0
+                elide: Text.ElideRight
                 visible: !!title
                 verticalAlignment: Text.AlignVCenter
             }