Center the date picker used for the time range filter which looks better when...

Center the date picker used for the time range filter which looks better when the filter uses the full width

src/View/Filter/TimeRange.elm

@@ -38,7 +38,12 @@ viewDate maybeDate onChange1 =
         onChange2 =
             onChange1 << Result.toMaybe << fromIsoString
     in
-    div [ style "flex" "1" ]
+    div
+        [ style "flex" "1"
+        , style "display" "flex"
+        , style "align-items" "center"
+        , style "justify-content" "center"
+        ]
         [ input
             ([ tabindex tabOrder.filters
              , type_ "date"