Revert "getting rid of csrf validation on this mixin the right way, decorating dispatch"

This reverts commit 385341f9.
3 jobs for 195-csrf-verification-failed-csrf-cookie-when-submitting-forms in 8 minutes and 40 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #1525
memopol
docs build

00:01:06

passed #1524
memopol
qa checks

00:01:21

passed #1523
memopol
unit tests

00:06:13

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