scatterplot.js : replace consensus length by average reads length

link to #2704
6 jobs for feature-c/2704-clone_average_reads_length in 2 minutes and 59 seconds (queued for 24 seconds)
Name Stage Failure
test_browser-functional Test Functional There is an unknown failure, please try again
Finished in 9.116205s, 0.3291 runs/s, 1.0969 assertions/s.

3 runs, 10 assertions, 0 failures, 0 errors, 0 skips

[Minitest::CI] Generating test report in JUnit XML format...
Makefile:11: recipe for target 'functional' failed
make: *** [functional] Error 1
make: Leaving directory '/home/gitlab-runner/builds/b8d876c1/0/vidjil/vidjil/browser/test'
ERROR: Job failed: exit status 1