feat: add metamask sdk

[EdouardBougon]

MetaMask SDK integration

This PR adds the connection to MetaMask using the MetaMask SDK.
We have developed a specific Web3-React connector.

The SDK must be used for both connecting via the extension and on mobile.

[height]

Link Height tasks by mentioning a task ID in the pull request title or commit messages, or description and comments with the keyword link (e.g. "Link T-123").

💡Tip: You can also use "Close T-X" to automatically close a task when the pull request is merged.

[github-actions]

❌ CI run has failed!
Please see logs at https://github.com/aave/interface/actions/runs/11667807465'

[github-actions]

📦 Next.js Bundle Analysis for aave-ui

This analysis was generated by the Next.js Bundle Analysis action. 🤖

⚠️ Global Bundle Size Increased

Page	Size (compressed)
global	544.7 KB (🟡 +1.75 KB)

Details

The global bundle is the javascript bundle that loads alongside every page. It is in its own category because its impact is much higher - an increase to its size means that every page on your website loads slower, and a decrease means every page loads faster.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

If you want further insight into what is behind the changes, give @next/bundle-analyzer a try!

Eight Pages Changed Size

The following pages changed size from the code in this PR compared to its base branch:

Page	Size (compressed)	First Load
/	65.95 KB (🔴 +18.06 KB)	610.65 KB
/bridge	36.21 KB (🟢 -25 B)	580.91 KB
/faucet	15.1 KB (-1 B)	559.8 KB
/governance/v3/proposal	124.15 KB (-5 B)	668.84 KB
/markets	27.45 KB (🟢 -99 B)	572.15 KB
/reserve-overview	19.76 KB (🟡 +86 B)	564.46 KB
/staking	22.11 KB (🟢 -733 B)	566.8 KB
/v3-migration	29.98 KB (🟡 +21 B)	574.68 KB

Details

Only the gzipped size is provided here based on an expert tip.

First Load is the size of the global bundle plus the bundle for the individual page. If a user were to show up to your website and land on a given page, the first load size represents the amount of javascript that user would need to download. If next/link is used, subsequent page loads would only need to download that page's bundle (the number in the "Size" column), since the global bundle has already been downloaded.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

Next to the size is how much the size has increased or decreased compared with the base branch of this PR. If this percentage has increased by 20% or more, there will be a red status indicator applied, indicating that special attention should be given to this.

[grothem]

Thanks for the PR @EdouardBougon

What are the advantages to using this sdk vs. the injected connector that we're currently using.