feat: rework network selector with popover, search, and grouped categ…

[foodaka]

…ories

Replace MUI Select dropdown with a wider Popover-based market selector. Markets are now grouped by Ethereum, L2 Networks, and Other Chains in a 3-column grid layout. Adds search filtering, horizontal pinned favorites row, selected market indicator with gradient accent bar, and removes the deprecated V2 toggle.

General Changes

• Fixes XYZ bug
• Adds XYZ feature
• …

Developer Notes

Add any notes here that may be helpful for reviewers.

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Reviewer Checklist

Please ensure you, as the reviewer(s), have gone through this checklist to ensure that the code changes are ready to ship safely and to help mitigate any downstream issues that may occur.

• End-to-end tests are passing without any errors
• Code changes do not significantly increase the application bundle size
• If there are new 3rd-party packages, they do not introduce potential security threats
• If there are new environment variables being added, they have been added to the .env.example file as well as the pertinant .github/actions/* files
• There are no CI changes, or they have been approved by the DevOps and Engineering team(s)

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Project	Deployment	Actions	Updated (UTC)
interface	Ready	Preview, Comment	Apr 9, 2026 6:45pm

[github-actions]

• Ipfs hash: bafybeia6a2zcad2fqpwz3cbfipw2cmnfcwvjlxl5fkz6ydvt3xx6ig4mmu
• Ipfs preview link: https://bafybeia6a2zcad2fqpwz3cbfipw2cmnfcwvjlxl5fkz6ydvt3xx6ig4mmu.ipfs.cf-ipfs.com/

[github-actions]

📦 Next.js Bundle Analysis for aave-ui

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

🎉 Global Bundle Size Decreased

Page	Size (compressed)
global	1.15 MB (🟢 -1.24 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!

Seven Pages Changed Size

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

Page	Size (compressed)	First Load
/	68.27 KB (🟡 +2.79 KB)	1.22 MB
/dashboard	58.09 KB (🟡 +2.79 KB)	1.21 MB
/governance	81.29 KB (🟡 +2.81 KB)	1.23 MB
/governance/v3/proposal	125.38 KB (🟡 +2.81 KB)	1.27 MB
/reserve-overview	26.83 KB (🟡 +2.73 KB)	1.18 MB
/safety-module	32.41 KB (🟡 +2.73 KB)	1.18 MB
/sgho	90.82 KB (🟡 +2.73 KB)	1.24 MB

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.