Monorepo for Tangled

appview: replace `PullComment` to `Comment` master

Including db migration to migrate `issue_comments` and `pull_comments` to unified `comments` table. Signed-off-by: Seongmin Lee <git@boltless.me>


Author Seongmin Lee Date Commit 28e2bfea Parent 5bca0644 Change ID koxrvyzn