* docs(browser): note tilde expansion also covers per-profile paths
The 95a2c9b fix expanded "~" for both `browser.executablePath` and
per-profile `profiles.<name>.executablePath` (config.ts:382 calls
`normalizeExecutablePath` for profile overrides). Per-profile
`userDataDir` on existing-session profiles is also tilde-expanded
(config.ts:391 via `resolveUserPath`). The configuration reference
only mentioned the top-level `browser.executablePath` case.
* docs(browser): align tilde path config help
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Co-authored-by: Peter Steinberger <steipete@gmail.com>