add replication throttle config to rebalance/add/remove/demote options

[countableSet]

adds replication throttle configuration to configuration options for rebalance, add, remove, and demote broker

• https://github.com/linkedin/cruise-control/wiki/REST-APIs#trigger-a-workload-balance
• https://github.com/linkedin/cruise-control/wiki/REST-APIs#add-a-list-of-new-brokers-to-kafka-cluster
• https://github.com/linkedin/cruise-control/wiki/REST-APIs#decommission-a-list-of-brokers-from-the-kafka-cluster
• https://github.com/linkedin/cruise-control/wiki/REST-APIs#demote-a-list-of-brokers-from-the-kafka-cluster

plus move around ui for demote to fit the new input box better
fix bug with demote broker where concurrent_leader_movements wasn't being set

cc #126

---

other fixes

• dev server wouldn't start without adding require path (node version v18.16.1)

❯ npm run dev

> [email protected] dev
> test -d cruise-control-ui && cd cruise-control-ui; node build/dev-server.js

/Users/countableset/code/countableset/cruise-control-ui/build/webpack.dev.conf.js:33
      favicon: path.resolve(__dirname, '../src/assets/images/cc-favicon.png'),
               ^

ReferenceError: path is not defined
    at Object.<anonymous> (/Users/countableset/code/countableset/cruise-control-ui/build/webpack.dev.conf.js:33:16)
    at Module._compile (node:internal/modules/cjs/loader:1256:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)
    at Module.load (node:internal/modules/cjs/loader:1119:32)
    at Module._load (node:internal/modules/cjs/loader:960:12)
    at Module.require (node:internal/modules/cjs/loader:1143:19)
    at require (node:internal/modules/cjs/helpers:110:18)
    at Object.<anonymous> (/Users/countableset/code/countableset/cruise-control-ui/build/dev-server.js:15:21)
    at Module._compile (node:internal/modules/cjs/loader:1256:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)
    at Module.load (node:internal/modules/cjs/loader:1119:32)
    at Module._load (node:internal/modules/cjs/loader:960:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)
    at node:internal/main/run_main_module:23:47

Node.js v18.16.1

• localhost:8090/static/config.csv would 404 in dev server, changed express config to app.use(/${staticPath}, express.static(path.join(__dirname, '../static')))