Upgrade to 0.19

[tesk9]

Context:

(Describe the situation that led you to discover the issue.)

Problem:

(What is the pain point and who does it affect?)

Possible solution or next step:

(If you have an idea for how to resolve the problem, please let us know! If not, no worries!)

[dphm]

https://github.com/elmbridge/curriculum/pull/123

[michaelglass]

remaining stuff here:

• [x] https://github.com/elmbridge/elmoji-translator/pull/9
• [x] https://github.com/elmbridge/elm-basics/pull/12
• [x] update links in curriculum

[michaelglass]

I think we can close this! 🎉

[avh4]

Thanks!