Add missing propTypes

For some reason the travis eslint did not catch these missing prop validations.

src/components/import-modal/import-modal.jsx

@@ -156,6 +156,7 @@ ImportModal.propTypes = {
     hasValidationError: PropTypes.bool.isRequired,
     inputValue: PropTypes.string.isRequired,
     intl: intlShape.isRequired,
+    isRtl: PropTypes.bool,
     onCancel: PropTypes.func.isRequired,
     onChange: PropTypes.func.isRequired,
     onGoBack: PropTypes.func.isRequired,

src/containers/gui.jsx

@@ -94,6 +94,7 @@ class GUI extends React.Component {
 }
 
 GUI.propTypes = {
+    assetHost: PropTypes.string,
     children: PropTypes.node,
     fetchingProject: PropTypes.bool,
     importInfoVisible: PropTypes.bool,
@@ -101,6 +102,7 @@ GUI.propTypes = {
     onSeeCommunity: PropTypes.func,
     previewInfoVisible: PropTypes.bool,
     projectData: PropTypes.oneOfType([PropTypes.object, PropTypes.string]),
+    projectHost: PropTypes.string,
     vm: PropTypes.instanceOf(VM)
 };