Revize c1664074

Re #8914 - Opravit zobrazení grafů pro endpoint analytics

• analytics working for sensor charts
• analytics for unit charts trigger dummy multiline analytics chart

src/vega/body/multilinechart.json

@@ -184 +184 @@
     }
   ],
   "signals": [
+    {},
+    {},
     {},
     {
       "name": "tooltipSignal",
@@ -241 +243 @@
       "legends": [
         {
           "fill": "color",
-          "title": "Sensory",
+          "title": "Sensors:",
           "offset": 0,
           "encode": {
             "symbols": {