Fix autosave issues for MR discussions
Fixes multiple autosave issues and ESC confirmations around noteable shared components and new MR discussions.
Fixes autosave issue in noteable shared components
Fixes ESC confirmation and autosave issues in reply a discussion form
Adds ESC confirmation to new discussion form
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/48876 and https://gitlab.com/gitlab-org/gitlab-ce/issues/48877
Edited by Fatih Acet