Fixes linting configuration and type errors in apps/desktop-ui.
## Changes
- Updated `eslint.config.ts` to use absolute path for `.oxlintrc.json`
resolution.
- Fixed `import-x` errors in `InstallFooter.vue`, `refUtil.ts`, and
`DesktopDialogView.vue`.
- Fixed i18n raw text error in `NotSupportedView.vue` via
eslint-disable.
- Fixed type inference issue in `i18n.ts` allowing dynamic locale
switching.
┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7271-fix-desktop-ui-resolve-linting-and-typecheck-errors-2c46d73d3650817cbb66cc7b1dc670a8)
by [Unito](https://www.unito.io)
## Summary
Extracts desktop UI into apps/desktop-ui package with minimal changes.
## Changes
- **What**:
- Separates desktop-specific code into standalone package with
independent Vite config, router, and i18n
- Drastically simplifies the main app router by removing all desktop
routes
- Adds a some code duplication, most due to the existing design
- Some duplication can be refactored to be *simpler* on either side - no
need to split things by `isElectron()`
- Rudimentary storybook support has been added
- **Breaking**: Stacked PR for publishing must be merged before this PR
makes it to stable core (but publishing _could_ be done manually)
- #5915
- **Dependencies**: Takes full advantage of pnpm catalog. No additional
dependencies added.
## Review Focus
- Should be no changes to normal frontend operation
- Scripts added to root package.json are acceptable
- The duplication in this PR is copied as is, wherever possible. Any
corrections or fix-ups beyond the scope of simply migrating the
functionality as-is, can be addressed in later PRs. That said, if any
changes are made, it instantly becomes more difficult to separate the
duplicated code out into a shared utility.
- Tracking issue to address concerns: #5925
### i18n
Fixing i18n is out of scope for this PR. It is a larger task that we
should consider carefully and implement properly. Attempting to isolate
the desktop i18n and duplicate the _current_ localisation scripts would
be wasted energy.
