Private Network - XYM hardcoded text

[fboucquez]

Ideally, I would like to have the faucet "private network" ready.
Although you can configure the mosiac id, there are a couple of places with the text XYM hardcoded. Some texts are also hardcoded to our public testnet which should be configurable. Example:

If anyone wants to claim 3m XYM to allow setting up a voting node/supernode, please request from the @nemhelpdesk telegram channel

The long-term task would be to white labeling the faucet, so we can skin it with a different brand if desired.

[fboucquez]

Another error, facuet doesn't allow any other network type than testnet...

https://github.com/nemgrouplimited/symbol-faucet/blob/main/components/FaucetForm.vue#L112