Nomad agent may silently ignore cni_path and bridge setting, when it
merges configs from multiple files (or against default/dev config).

This PR ensures that the values are merged properly.

website: Homepage redesign & use-cases pages

We've temporarily ejected the meganav component to add some custom
styling that needed to happen for NomadProject.io

Co-Authored-By: Mike Wickett <mike@wickett.ca>

Co-Authored-By: Mike Wickett <mike@wickett.ca>

Co-Authored-By: Mike Wickett <mike@wickett.ca>

Co-Authored-By: Mike Wickett <mike@wickett.ca>

drivermanager: attempt dispense on reattachment failure

consul/connect: in-place update sidecar service registrations on changes

Co-Authored-By: Michael Schurter <mschurter@hashicorp.com>

Fix panic when canonicalizing a jobspec with incorrect job type.

When canonicalizing the ReschedulePolicy a panic was possible if
the passed job type was not valid. This change protects against
this possibility, in a verbose way to ensure the code path is
clear.

Document service lifecycle

Update website to v0.10.4

release: prep for next dev cycle

Revert "Add the digital marketing team as the code owners for the website dir"

fix port forwarding of TCP/4646

Fix a bug where consul service definitions would not be updated if changes
were made to the service in the Nomad job. Currently this only fixes the
bug for cases where the fix is a matter of updating consul agent's service
registration. There is related bug where destructive changes are required
(see #6877) which will be fixed in another PR.

The enable_tag_override configuration setting for the parent service is
applied to the sidecar service.

Fixes #6459

[docs] Add note Nomad Connect requires namespaces...

client: support no_pivot_root in exec driver configuration

check if website-docker-image job should run

and can only run on linux oses at the moment.

Update consul vendor and add MinQuorum flag

A few minor tweaks and cleanups as well.

docs: fix references to consul environment variable

docs: upgrade-specific notes on CHT filtering