Pypowerwall

* Add cache and extended TTL for 404 responses from Powerwall as identified in issue https://github.com/jasonacox/Powerwall-Dashboard/issues/449. This will help reduce load on Powerwall gateway that may be causing rate limiting for some users (Firmware 23.44.0+).

* Bug fix for correct grid status for Solar-Only systems on `cloud mode` (see https://github.com/jasonacox/Powerwall-Dashboard/issues/437)

* Fix enumeration of energy sites during `cloud mode` setup to handle incomplete sites with Unknown names or types by dcgibbons in https://github.com/jasonacox/pypowerwall/pull/72
* Proxy t41 Updates - Bug fixes for Solar-Only systems using `cloud mode` (see https://github.com/jasonacox/Powerwall-Dashboard/issues/437).

* Proxy t40: Use /api/system_status battery blocks data to augment /pod and /freq macro data APIs by jasonacox in https://github.com/jasonacox/pypowerwall/pull/67 thanks to ceeeekay in https://github.com/jasonacox/Powerwall-Dashboard/discussions/402#discussioncomment-8193776
* Network Scanner: Improve network scan speed by scanning multiple hosts simultaneously by mcbirse in https://github.com/jasonacox/pypowerwall/pull/67. The number of hosts to scan simultaneously can be adjusted using the optional `-hosts=` argument (default = 30, maximum = 100), e.g. `python -m pypowerwall scan -hosts=50`

* Fix Critical Bug - 404 HTTP Status Code Handling (Issue https://github.com/jasonacox/pypowerwall/issues/65).

* Added optional email address argument to Cloud Mode setup (`python -m pypowerwall setup -email=<email>`) by mcbirse in https://github.com/jasonacox/pypowerwall/pull/64 to streamline Powerwall-Dashboard setup script.
* Updated network scanner output to advise Powerwall 3 is supported in Cloud Mode by mcbirse in https://github.com/jasonacox/pypowerwall/pull/64