LinePlot: add axis labels

src/Views/LinePlot.elm

@@ -374,7 +374,19 @@ view global model =
                 ]
             ]
         ] 
+        , div [ Html.Attributes.style "font-size" "12px"
+                , Html.Attributes.style "margin-left" "4rem"
+                , Html.Attributes.style "margin-bottom" "-1rem"
+                , Html.Attributes.style "margin-top" "1rem" ]
+            [ Html.text "Number of Visas"]
+
         , chart dataLines
+
+        , div [ Html.Attributes.style "font-size" "12px"
+                , Html.Attributes.style "margin" "auto"
+                , Html.Attributes.style "margin-top" "-2rem"
+                , Html.Attributes.style "margin-bottom" "1rem" ] 
+            [ Html.text "Years"]
         , div [ Html.Attributes.style "display" "flex"
                 , Html.Attributes.style "flex-direction" "row"
                 , Html.Attributes.style "gap" "4px"