Overhaul of Addresses page and implementation of a conversion tool.

[thomivy]

Summary of changes

This adds an automatic conversion tool for addresses on the Developer>Addresses page and adds signficant detail and clarity to the mappings and cross-chain transfers section.

CLI for Links failed due to Bad Gateway issue on Tangle App:

 ### Errors in pages/network/launch.mdx
* [502] [https://app.tangle.tools/claim](https://app.tangle.tools/claim) | Failed: Network error: Bad Gateway
### Errors in pages/network/claim-airdrop.mdx
* [502] [https://app.tangle.tools/claim](https://app.tangle.tools/claim) | Failed: Network error: Bad Gateway

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Code Checklist

• I have tested that prove my changes are working as intended
• I have added necessary documentation (if appropriate)

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[thomivy]

Example of the Tangle App throwing errors making the CI links fail:

### Errors in pages/network/launch.mdx

* [502] [https://app.tangle.tools/claim](https://app.tangle.tools/claim) | Failed: Network error: Bad Gateway

### Errors in pages/network/claim-airdrop.mdx

* [502] [https://app.tangle.tools/claim](https://app.tangle.tools/claim) | Failed: Network error: Bad Gateway