fix: Add estimateGas test

[richtera]

Ticket ID

https://app.clickup.com/t/2645698/DEV-8380

Description

Add Estimate Gas button and implement

Remove passing DEFAULT_GAS and DEFAULT_GAS_PRICE everywhere.

[github-actions[bot]]

Deployed with Cloudflare Pages :cloud: :rocket: :ok:

• URL: https://fix-work-on-gas-estimate.universalprofile-test-dapp.pages.dev
• Specific: https://cd29a960.universalprofile-test-dapp.pages.dev

[richtera]

This can be used with https://github.com/lukso-network/universalprofile-extension/pull/990 to call estimateGas on the extension and return a value.

[frozeman]

Task linked: DEV-8380 Bug: incorrect behaviour for eth_estimateGas

[richtera]

Task linked: DEV-6271 Bug: the gas price is not correctly calculated

[frozeman]

Task linked: DEV-8380 Bug: incorrect behaviour for eth_estimateGas