add graph legends

frontend/src/views/HomeView.vue

@@ -4,6 +4,7 @@ import { provide } from 'vue';
 import Graph from '@/components/SvgGraph.vue';
 import Axis from '@/components/GraphAxis.vue';
 import Line from '@/components/TelemetryLine.vue';
+import { GraphSide } from '@/graph/graph';
 
 const websocket = useWebsocket();
 provide(WEBSOCKET_SYMBOL, websocket);
@@ -15,6 +16,7 @@ provide(WEBSOCKET_SYMBOL, websocket);
             :width="800"
             :height="400"
             :right_axis="true"
+            :legend="GraphSide.Left"
         >
             <Axis>
                 <Line data="simple_producer/time_offset"></Line>
@@ -27,6 +29,7 @@ provide(WEBSOCKET_SYMBOL, websocket);
             :height="400"
             :duration="60 * 1000 * 10"
             :right_axis="true"
+            :legend="GraphSide.Right"
         >
             <Axis>
                 <Line