docs: Move Localnet development to separate page

[aefhm]

Description

Close #959

Note. Configuring Docusaurus redirect is not possible from an URL with an anchor.

message: '"redirects[54].from[0]" (/dapp/emerald/writing-dapps-on-emerald#running-a-private-oasis-network-locally) is not a valid pathname. Pathname should start with slash and not contain any domain or query string.',

TODO

• run broken link checker

PREVIEW

[netlify]

✅ Deploy Preview for oasisprotocol-docs ready!

Name	Link
🔨 Latest commit	84e30a8
🔍 Latest deploy log	https://app.netlify.com/sites/oasisprotocol-docs/deploys/670d0c961e7c9a0007a619fb
😎 Deploy Preview	https://deploy-preview-977--oasisprotocol-docs.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[rube-de]

Suggested change

	#### For development and testing, you can run a local [instance][localnet]
	## For development and testing, you can run a local [instance][localnet]

Probably 2 # too much
I think having the old header and card to the localnet could be also a good way

[aefhm]

Hmm. Yeah, ## is more consistent with "Testnet" etc. Let me try the text for now. I tend to think that the card takes the reader away from the flow of the document.

[aefhm]

I don't think devs need duplicated info for Emerald.

[matevz]

Added some ideas.

[matevz]

The -test-mnemonic is now default. Let's keep this outside of admonition not to bloat the chapter too much.

Suggested change

	:::tip
	If you prefer using the same mnemonics each time (e.g. for testing purposes)
	or to populate just a single account, use `-to` flag and pass the mnemonics or
	the wallet addresses. By passing the `-test-mnemonic` flag you can fund the
	standard test accounts provided by the `hardhat node` commmand and that are
	typically used for solidity unit tests.
	<Tabs>
	<TabItem value="Sapphire">
	```sh
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/sapphire-localnet -to "bench remain brave curve frozen verify dream margin alarm world repair innocent" -n3
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/sapphire-localnet -to "0x75eCF0d4496C2f10e4e9aF3D4d174576Ee9010E2,0xbDA5747bFD65F08deb54cb465eB87D40e51B197E"
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/sapphire-localnet -test-mnemonic
	```
	</TabItem>
	<TabItem value="Emerald">
	```sh
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/emerald-localnet -to "bench remain brave curve frozen verify dream margin alarm world repair innocent" -n3
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/emerald-localnet -to "0x75eCF0d4496C2f10e4e9aF3D4d174576Ee9010E2,0xbDA5747bFD65F08deb54cb465eB87D40e51B197E"
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/emerald-localnet -test-mnemonic
	```
	</TabItem>
	</Tabs>
	:::
	By default, the Localnet docker image will populate the first five accounts
	derived from the standard test mnemonic, compatible with `hardhat node`.
	These accounts are typically used for solidity unit tests. If you prefer
	populating different accounts, use `-to` flag and pass the mnemonics or the
	wallet addresses. Using the `-n` parameter defines the number of derived
	addresses to fund.
	<Tabs>
	<TabItem value="Sapphire">
	```sh
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/sapphire-localnet -to "bench remain brave curve frozen verify dream margin alarm world repair innocent" -n3
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/sapphire-localnet -to "0x75eCF0d4496C2f10e4e9aF3D4d174576Ee9010E2,0xbDA5747bFD65F08deb54cb465eB87D40e51B197E"
	```
	</TabItem>
	<TabItem value="Emerald">
	```sh
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/emerald-localnet -to "bench remain brave curve frozen verify dream margin alarm world repair innocent" -n3
	docker run -it -p8544-8546:8544-8546 ghcr.io/oasisprotocol/emerald-localnet -to "0x75eCF0d4496C2f10e4e9aF3D4d174576Ee9010E2,0xbDA5747bFD65F08deb54cb465eB87D40e51B197E"
	```
	</TabItem>
	</Tabs>

[matevz]

Suggested change

	Additionally, the [Oasis GRPC](https://github.com/oasisprotocol/oasis-core/blob/master/docs/oasis-node/rpc.md) endpoint is exposed on:
	- `http://localhost:8544`

[matevz]

Please use paths to the .md files instead.

Suggested change

	[localnet]: /dapp/tools/localnet
	[localnet]: ../tools/localnet.mdx

[matevz]

Please also add a section on how to run Localnet with github actions. For example:

  jobs:
    services:
      sapphire-localnet-ci:
        image: ghcr.io/oasisprotocol/sapphire-localnet
        ports:
          - 8544:8544
          - 8545:8545
          - 8546:8546
        env:
          OASIS_DEPOSIT_BINARY: /oasis-deposit -n 2
        options: >-
          --rm
          --health-cmd="test -f /CONTAINER_READY"
          --health-start-period=90s