Don’t apply ‘tool-panel’ class to modal panels

src/panel-container-element.coffee

@@ -18,7 +18,7 @@ class PanelContainerElement extends HTMLElement
     if @model.isModal()
       panelElement.classList.add("overlay", "from-top")
     else
-      panelElement.classList.add("panel-#{@model.getLocation()}")
+      panelElement.classList.add("tool-panel", "panel-#{@model.getLocation()}")
 
     if index >= @childNodes.length
       @appendChild(panelElement)

src/panel-element.coffee

@@ -12,7 +12,6 @@ class PanelElement extends HTMLElement
     @appendChild(view)
     callAttachHooks(view) # for backward compatibility with SpacePen views
 
-    @classList.add("tool-panel")
     @classList.add(@model.getClassName().split(' ')...) if @model.getClassName()?
     @subscriptions.add @model.onDidChangeVisible(@visibleChanged.bind(this))
     @subscriptions.add @model.onDidDestroy(@destroyed.bind(this))