feat: update compio

[Berrysoft]

• There's no spawn_unchecked. Have to work around.
• Fix some warnings.

[Copilot]

Pull request overview

Updates the workspace to a newer compio release candidate and adapts the GUI runtimes to the updated runtime APIs (notably removing reliance on spawn_unchecked), along with a few warning-cleanups.

Changes:

• Bump compio (workspace) and related dev dependencies (cyper, cyper-axum) to newer RC versions.
• Replace spawn_unchecked-based blocking logic with a new enter_block_on/main-task polling approach for Win32/WinUI runtimes.
• Minor cleanup changes: example URLs updated; small refactors and float-literal suffixes to silence warnings.

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
Cargo.toml	Bumps workspace compio version and removes compio-runtime from workspace deps.
winio/Cargo.toml	Aligns winio’s dependency declarations with the workspace compio update and bumps dev deps (cyper*).
winio/examples/subviews/webview.rs	Updates example URL.
winio/examples/subviews/net.rs	Updates example URL.
winio-layout/src/stack_panel.rs	Adds explicit f32 suffixes to avoid numeric-literal warnings.
winio-ui-winui/Cargo.toml	Consolidates runtime-related deps into compio features (drops compio-runtime).
winio-ui-winui/src/runtime.rs	Refactors block_on to use enter_block_on and exits app after future completes.
winio-ui-win32/src/runtime.rs	Refactors block_on to use enter_block_on and quits message loop after future completes.
winio-ui-win32/src/ui/edit.rs	Minor match-arm refactor.
winio-ui-windows-common/src/msgbox.rs	Uses compio::runtime::ResumeUnwind helper for join error handling.
winio-ui-windows-common/src/filebox.rs	Uses compio::runtime::ResumeUnwind helper for join error handling.
winio-ui-windows-common/src/darkmode/hook.rs	Minor match-arm refactor.
winio-pollable/Cargo.toml	Adjusts dependencies to support new main-task polling approach (futures-util, scoped-tls).
winio-pollable/src/lib.rs	Implements main-task polling (enter_block_on) to replace spawn_unchecked patterns.

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