In most integration tests we already use the pattern of defining the
editor selector once and reusing it in the rest of the test, but it's
not fully consistent everywhere yet. This commit fixes that for the
freetext editor integration tests, which has multiple advantages:
- it improves consistency between the various editor integration tests;
- it removes duplicate function calls and aligns variable definitions;
- it reduces the number of `getEditorSelector` calls that contained
hardcoded IDs, which helps to isolate the tests and to simplify
follow-up patches.
e95a26dc1d