updated type hints for remaining graphics_element generic types

coordinator/ui/components/boiler.lua

@@ -15,7 +15,7 @@ local cpair = core.cpair
 local border = core.border
 
 -- new boiler view
----@param root graphics_element parent
+---@param root Container parent
 ---@param x integer top left x
 ---@param y integer top left y
 ---@param ps psil ps interface