Extends the quick actions "commands applied" banner to show
the quick action preview text, but with everything in past tense.

Signed-off-by: Rémy Coutable <remy@rymai.me>

Backports https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/10161
(code out of ee/ folder).

Fixes quick actions add label when adding a label which name middle
word overlaps with another label name: for example adding "A B C" when
also label "B" exists.
With the fix only the label "A B C" is correctly added, previously
also the label "B" was added due to the middle word overlaps.

Add no-op license helper to CE to make it compatible with EE codebase.
Helper will be overwritten in EE to allow for CE specs to be run under
EE codebase.

https://gitlab.com/gitlab-org/gitlab-ee/issues/6539

Fix 'commands applied' messages not being shown when issue is promoted to epic
using slash commands.

With this quick action the user can create a new MR starting from
the current issue using as `source_branch` the given `branch name` and
as `target_branch` the project default branch. If the `branch name` is
omitted a name is automatically created starting from the issue title.

Sometimes we don't want to trigger any quick actions that cause side
effects. For example when building a record to validate. This allows
listing the quick actions that need to be performed.