Describe the bug

Currently pressing "u" command during browser watch mode is not working.

The issue seems to be that configOverride:

is not passed to browser client via getConfig API:

It looks like other pools are using getSerializableConfig, so I suppose browse pool can do the same?

Reproduction

https://github.com/hi-ogawa/repro-vitest-browser-update-snapshot/

• pnpm test to start watch mode
• initially test fails with error: 2 (actual) != 1 (snapshot)
• press "u" to update snapshot
• still the same error: 2 (actual) != 1 (snapshot)

It looks like browser mode snapshot is completely stuck on stackblitz but the same code is here:
https://stackblitz.com/edit/vitest-dev-vitest-xqh7sx?file=package.json

System Info

System:
    OS: Linux 6.6 Arch Linux
    CPU: (12) x64 AMD Ryzen 5 5625U with Radeon Graphics
    Memory: 2.06 GB / 14.98 GB
    Container: Yes
    Shell: 5.2.21 - /bin/bash
  Binaries:
    Node: 18.19.0 - ~/.volta/tools/image/node/18.19.0/bin/node
    Yarn: 1.22.19 - ~/.volta/tools/image/yarn/1.22.19/bin/yarn
    npm: 10.2.3 - ~/.volta/tools/image/node/18.19.0/bin/npm
    pnpm: 8.12.0 - ~/.volta/tools/image/node/18.19.0/bin/pnpm
  Browsers:
    Chromium: 120.0.6099.129
  npmPackages:
    @vitest/browser: latest => 1.1.1 
    vite: latest => 5.0.10 
    vitest: latest => 1.1.1

Used Package Manager

pnpm

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