Add thumbnail visibility options

[hacktivateit]

refs #160

Add the ability to show/hide the thumbnail image inside post and/or the homepage, both options default to true

[jorgepiloto]

Thank you for opening this @Betmaster! I am interested in this particular feature. What do you think about the status of this, @Vimux? Is it ready to be merged? It looks like all tests passed 👍🏽

[Vimux]

Hi @jorgepiloto,

The current implementation is not ready enough:

Important:

1. Params:
   1. Unclear naming:show_thumb_in_home not only for the home page but for all list-like pages
   2. Hard to remember both params (without README). Take a look at any other theme-defined front-matter parameters.
   3. Three underscores are overkill.
   4. It might be worth considering alternatives to how to add this. I mean not only the param name but also the structure itself (map?).
2. Complex thumbnail (adding new params increases complexity) requires separation into a separate part. Better to do separation first, in an isolated PR, but with this PR and possibly other changes (Add Page Bundles and Image Processing support #57???) in mind, other than complete remade/find hacks for this repeatedly in the future.

Minor:

1. Tabs/spaces mixing
2. EOL changes

[jorgepiloto]

Thanks @Vimux for listing the different suggestions and requested changes. Hopefully @Betmaster or another user may apply them. I wish my knowledge of Hugo was deeper so I could help you with some of the work in this project. Really like this theme! ❤️

[Vimux]

@jorgepiloto,

Not sure if this is still relevant for you, but it should work now.

[jorgepiloto]

Thanks for implementing this @Vimux! 🎉

I took a view to the pull request and really like the way this can be configured, either globally or for a particular post. Working as expected locally 👍🏽