Change notifications contents to use snake_case

[LVala]

No description provided.

[codecov]

Codecov Report

Merging #35 (0fc5a90) into main (b3faec6) will not change coverage.
The diff coverage is 0.00%.

@@           Coverage Diff           @@
##             main      #35   +/-   ##
=======================================
  Coverage   80.28%   80.28%           
=======================================
  Files          28       28           
  Lines         350      350           
=======================================
  Hits          281      281           
  Misses         69       69           

Impacted Files	Coverage Δ
lib/jellyfish_web/server_socket .ex	3.57% <0.00%> (ø)

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b3faec6...0fc5a90. Read the comment docs.