Fix cartesian hover toggle

The hover toggle button couldn't be enabled on cartesian plots because the later setup completely overwrote the initial allowed groups. So just make it add the cartesian buttons instead of replacing the groups completely.
plotly · archmoj · Jul 13, 2024 · Aug 4, 2021 · Aug 5, 2021 · 54159094172fdc3e75b787ea3e5012d1963992ab
commit 54159094172fdc3e75b787ea3e5012d1963992ab
diff --git a/src/components/modebar/manage.js b/src/components/modebar/manage.js
@@ -183,7 +183,7 @@ function getButtonGroups(gd) {
    // regardless of what other types are on the plot, since they'll all
    // just treat any truthy hovermode as 'closest'
    if(hasCartesian) {
-        hoverGroup = ['toggleSpikelines', 'hoverClosestCartesian', 'hoverCompareCartesian'];
+        hoverGroup.push('toggleSpikelines', 'hoverClosestCartesian', 'hoverCompareCartesian');
    }
    if(hasNoHover(fullData) || hasUnifiedHoverLabel) {
        hoverGroup = [];