Issue with Vue devtools

[MaxGfeller]

When inspecting a vuex-pagination instance in Vue devtools, it doesn't show all the properties. This is probably due to the fact that we're using a Proxy.

However, it should be possible to inspect the values in devtools too.

The steps for solving this issue should be the following:

• Find out exactly why it is not displayed properly
• Implement this so in devtools we see all properties of the instance (items, loading, total, totalPages, page, pageSize)
• Check if values can be edited from the devtools (e.g. page or pageSize)
• Profit 🎉