Correct all predicate function names #4435

Job	Run time
Build Docker image	3m 39s
file_changes	5s
Build application and assets	2m 54s
Linting / TypeScript	35s
Linting / JavaScript	39s
Linting / CSS	23s
Linting / Elixir	2m 7s
Unit tests / JavaScript / Mocha	34s
Unit tests / JavaScript & TypeScript / Jest	2m 2s
Type checks / Elixir	4m 20s
Formatting / Elixir	21s
Formatting / JavaScript & TypeScript	37s
Type checks / TypeScript	39s
Unit tests / Elixir / mix coveralls.html	1m 55s
	20m 50s

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