Fixed issues with gems prompt not laying out properly from item store details view.

app/styles/common/common.sass

@@ -248,6 +248,8 @@ kbd
 
   &.btn-lg
     border-width: 14px 20px 20px 20px
+    height: 60px
+    line-height: 34px
 
   &.btn-primary
     border-image-source: url(/images/common/button-background-primary-active-border.png)

app/views/play/modal/PlayItemsModal.coffee

@@ -202,6 +202,7 @@ module.exports = class PlayItemsModal extends ModalView
     unlockButton.popover(
       animation: true
       trigger: 'manual'
+      placement: 'top'
       content: ' '  # template has it
       container: @$el
       template: popoverTemplate