Since we're polling for updates to max revision id every second, and
listening for update events for revision id in the proxy repository then
running a refresh interval of 20secs in the proxy repo refresh seems
excessive.
This PR changes the frequency of the refresh to once per 45mins.
## About the changes
This is a rough initial version as a PoC for a permission matrix.
This is only available after enabling the flag `userAccessUIEnabled`
that is set to true by default in local development.
The access was added to the users' admin page but could be embedded in
different contexts (e.g. when assigning a role to a user):

This is how the matrix looks like

---------
Co-authored-by: Nuno Góis <github@nunogois.com>
## About the changes
getAllActive from api-tokens store is the second most frequent query

To prevent starving our db connections, we can cache this data that
rarely changes and clear the cache when we see changes. Because we will
only clear changes in the node receiving the change we're only caching
the data for 1 minute.
This should give us some room to test if this solution will work
---------
Co-authored-by: Nuno Góis <github@nunogois.com>
## About the changes
Sets data migration of features and events created_by_user_id to
disabled by default
Map to promise and await all in created by user id migration for features
## About the changes
Adds a scheduled task that every 5 seconds updates 500 entries in the
features table setting `created_by_user_id`.
It does this by looking at the related event, checks created_by and
joins users table for match on username or email, and joins api_tokens
table on username matches. Then picks either a users id if set, or uses
-42 (admin token user)
Previously we used a killswitch and returned 404 if the feature was
enabled. This flips that to a default disabled toggle, that has to be
turned on to handle old Edge (pre 17.0.0) posting bulk metrics
This PR will allow us to use a feature flag with variants to control
whether or not we should show the comments field of the feedback form.
This will allow us to see whether we can increase feedback collection if
we reduce the load on the customer.
Since we've now added PAT's we really do recommend switching to those,
or for enterprises, we recommend using service accounts.
Admin tokens have an obvious disadvantage in that they're not connected
to any user, so actions performed by them are harder to audit.
This PR adds a killswitch for turning it off, in preparation for
deprecating them and ultimately removing them in the future.
## About the changes
This allows us to encrypt emails at signup for demo users to further
secure our demo instance. Currently, emails are anonymized before
displaying events performed by demo users. But this means that emails
are stored at rest in our DB. By encrypting the emails at login, we're
adding another layer of protection.
This can be enabled with a flag and requires the encryption key and the
initialization vector (IV for short) to be present as environment
variables.
If the kill switch is enabled unleash returns 404 and a json body explaining why a 404 was given, encouraging users to upgrade to the most recent version of Edge.
## Why
Currently AWS API Gateway doesn't have compression enabled by default,
this PR will make it easier to for example deploy Unleash over to AWS
Lambda without further configuration in API Gateway, frameworks like
Serverless requires a bit more work to set up compression and some times
one might not need compression at all.
## How
Create a new config flag called `disableCompression` which will not
include `compression` middleware in express' instance when set as true.