Resolved sidemenu-content mismatch on reference page of official website (#2428)

* Improved scrollToHash function code with specific selector
When there is a link to content in column-content, the function may scroll to wrong location. Check #legend-hide

* Resolved sidemenu-content mismatch on reference page of official website
When browing on reference page, there are some references in sidemenu for which there is no content, for some others content was present but no reference in side & some refrences were mispositioned
Added references for data.labels.format, data.ondragstart, data.ondragend
Updated axis.y.type position as it was mispositioned
Commented api.category, api.categories, api.tooltip.show, and api.tooltip.hide as no description content found

docs/reference.html.haml

@@ -45,6 +45,7 @@
           = partial :reference_menu_item, locals: { id: 'data.type' }
           = partial :reference_menu_item, locals: { id: 'data.types' }
           = partial :reference_menu_item, locals: { id: 'data.labels' }
+          = partial :reference_menu_item, locals: { id: 'data.labels.format' }
           = partial :reference_menu_item, locals: { id: 'data.order' }
           = partial :reference_menu_item, locals: { id: 'data.regions' }
           = partial :reference_menu_item, locals: { id: 'data.color' }
@@ -62,6 +63,8 @@
           = partial :reference_menu_item, locals: { id: 'data.onmouseout' }
           = partial :reference_menu_item, locals: { id: 'data.onselected' }
           = partial :reference_menu_item, locals: { id: 'data.onunselected' }
+          = partial :reference_menu_item, locals: { id: 'data.ondragstart' }
+          = partial :reference_menu_item, locals: { id: 'data.ondragend' }
 
           %li Axis
           = partial :reference_menu_item, locals: { id: 'axis.rotated' }
@@ -88,8 +91,8 @@
           = partial :reference_menu_item, locals: { id: 'axis.x.extent' }
           = partial :reference_menu_item, locals: { id: 'axis.x.label' }
           = partial :reference_menu_item, locals: { id: 'axis.y.show' }
-          = partial :reference_menu_item, locals: { id: 'axis.y.type' }
           = partial :reference_menu_item, locals: { id: 'axis.y.inner' }
+          = partial :reference_menu_item, locals: { id: 'axis.y.type' }
           = partial :reference_menu_item, locals: { id: 'axis.y.max' }
           = partial :reference_menu_item, locals: { id: 'axis.y.min' }
           = partial :reference_menu_item, locals: { id: 'axis.y.inverted' }
@@ -124,8 +127,8 @@
           = partial :reference_menu_item, locals: { id: 'grid.y.show' }
           = partial :reference_menu_item, locals: { id: 'grid.y.lines' }
           = partial :reference_menu_item, locals: { id: 'grid.y.ticks' }
-          = partial :reference_menu_item, locals: { id: 'grid.focus.show' }
-          = partial :reference_menu_item, locals: { id: 'grid.lines.front' }
+          -#= partial :reference_menu_item, locals: { id: 'grid.focus.show' }
+          -#= partial :reference_menu_item, locals: { id: 'grid.lines.front' }
 
           %li Region
           = partial :reference_menu_item, locals: { id: 'regions' }
@@ -240,8 +243,8 @@
           = partial :reference_menu_item, locals: { id: 'api.data.names' }
           = partial :reference_menu_item, locals: { id: 'api.data.colors' }
           = partial :reference_menu_item, locals: { id: 'api.data.axes' }
-          = partial :reference_menu_item, locals: { id: 'api.category' }
-          = partial :reference_menu_item, locals: { id: 'api.categories' }
+          -#= partial :reference_menu_item, locals: { id: 'api.category' }
+          -#= partial :reference_menu_item, locals: { id: 'api.categories' }
           = partial :reference_menu_item, locals: { id: 'api.x' }
           = partial :reference_menu_item, locals: { id: 'api.xs' }
           -#= partial :reference_menu_item, locals: { id: 'api.color' }
@@ -251,8 +254,8 @@
           = partial :reference_menu_item, locals: { id: 'api.axis.range' }
           = partial :reference_menu_item, locals: { id: 'api.legend.show' }
           = partial :reference_menu_item, locals: { id: 'api.legend.hide' }
-          = partial :reference_menu_item, locals: { id: 'api.tooltip.show' }
-          = partial :reference_menu_item, locals: { id: 'api.tooltip.hide' }
+          -#= partial :reference_menu_item, locals: { id: 'api.tooltip.show' }
+          -#= partial :reference_menu_item, locals: { id: 'api.tooltip.hide' }
           = partial :reference_menu_item, locals: { id: 'api.zoom' }
           = partial :reference_menu_item, locals: { id: 'api.unzoom' }
           = partial :reference_menu_item, locals: { id: 'api.zoom.enable' }