Remove large series models from reactive data in plots (#6961)

* remove series object from highlights

* remove series models from legend reactive data

* drawing all annotations at once is way faster

* fix multi annotations

* lots of reactive things depending on config

* make annotation lookup faster

* lint

* readd perf test

* address PR comments

* fix highlight typo

---------

Co-authored-by: Jesse Mazzella <ozyx@users.noreply.github.com>
Co-authored-by: Shefali Joshi <simplyrender@gmail.com>

src/plugins/plot/legend/PlotLegend.vue

@@ -45,7 +45,7 @@
           :key="`${seriesObject.keyString}-${seriesIndex}-collapsed`"
           :highlights="highlights"
           :value-to-show-when-collapsed="valueToShowWhenCollapsed"
-          :series-object="seriesObject"
+          :series-key-string="seriesObject.keyString"
           @legendHoverChanged="legendHoverChanged"
         />
       </div>
@@ -72,7 +72,7 @@
             <plot-legend-item-expanded
               v-for="(seriesObject, seriesIndex) in seriesModels"
               :key="`${seriesObject.keyString}-${seriesIndex}-expanded`"
-              :series-object="seriesObject"
+              :series-key-string="seriesObject.keyString"
               :highlights="highlights"
               @legendHoverChanged="legendHoverChanged"
             />