Making the yields in the top panel clickable

[chaorace]

Self-explanatory, I'm thinking science icon links to science victory ui, religion to religious victory ui, tourism to culture victory ui, trade to trade ui, diplomats to city state ui, luxury icons to City Status page in reports ui. Unsure of what to do with tourism/gold yields

[jacks0nX]

Personally I would only make the yields (science, culture, faith, gold) clickable. The components for diplomats and trade routes doesn't really suggest "this is clickable" to the playe, whereas the first four do.

I already implemented this for me, will commit if wanted.

[chaorace]

I'll happily accept a PR if you send one this way! That being said, I can't see a reason why the trade/diplo icons shouldn't go somewhere, there's just no downside.