fix: improve token denom handling for IBC tokens: part 2

[dib542]

This PR aims to clean up some fixes before merging:

• fix: token denom handling for IBC tokens on testnet #516

In particular this PR refactors cleans up several small issues identified during the main PR to merge after

• Vite dev server files should be ignored
  • from Replace create-react-app with Vite #507
• Dialog component renders an unexpected superfluous trigger button
  • from fix deprecated Dialog dependency issues #482
• duplicate Keplr requests were sometimes seen: deduplicating with a cache key solves this
• certain generated URLs did not encode the IBC denom / character when making indexer fetch requests
• indexer should have exported fetch helpers like in https://github.com/duality-labs/duality-front-end-sdk

[github-actions]

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[dib542]

🎉 This PR is included in version 0.3.50 🎉

The release is available on GitHub release

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