Move chain db size out of telemetry class and into stats cmd

[ygao76]

Summary

Move chain db size to stats cmd
Add chain db size to node getStatus response
Remove chain db size from telemetry class and blockchain class

Testing Plan

locally run yarn start service:stats
log chain db size to console

yajun@Yajuns-MBP ironfish-cli % yarn start service:stats
yarn run v1.22.19
$ yarn build && yarn start:js service:stats
$ tsc -b
$ cross-env OCLIF_TS_NODE=0 IRONFISH_DEBUG=1 node --expose-gc --inspect=:0 --inspect-publish-uid=http --enable-source-maps bin/run service:stats
module: @oclif/core@1.23.1
task: toCached
plugin: ironfish
root: /Users/yajun/ironfish/ironfish/ironfish-cli
See more details with DEBUG=*
(Use `node --trace-warnings ...` to show where the warning was created)
chain DB size 3486947512

Documentation

Does this change require any updates to the Iron Fish Docs (ex. the RPC API
Reference)? If yes, link a
related documentation pull request for the website.

[ ] Yes

Breaking Change

Is this a breaking change? If yes, add notes below on why this is breaking and
what additional work is required, if any.

[ ] Yes

@dguenther

[dguenther]

Looks good! For documentation, this will require an update to https://ironfish.network/developers/documentation/rpc/node/get_status once it's released, so you could prepare a draft PR with the changes for when that happens

[dguenther]

Looks good! For documentation, this will require an update to https://ironfish.network/developers/documentation/rpc/node/get_status once it's released, so you could prepare a draft PR with the changes for when that happens