Update config, LuaLS definitions, bundle and changelog

src/LuaLS.lua

@@ -415,6 +415,14 @@ function Container:addFrame()
     return self
 end
 
+--- Adds a new Graph to the container
+---@generic Element: Container
+---@param self Element
+---@return Graph
+function Container:addGraph()
+    return self
+end
+
 --- Adds a new Image to the container
 ---@generic Element: Container
 ---@param self Element