CmdPal: Add support for multiple clocks and refactor the Time and Date module (#49288) ## Summary of the Pull Request This PR refactors Time and date extension and adds support for multiple clocks with different time zone and/or display format. - Adds a new page for viewing and managing custom clocks, each with its own time zone, title, and subtitle display format. - Adds per-clock settings. - Adds a relative date format based on the current date, for cases where a time zone difference changes the displayed date. - Makes custom clocks pinnable. - Dynamically adapts "Copy time" and "Copy date" context menu items names to actual format being copied. - Adds a new optional "Copy XXX" context menu item, to allow copy a user-selected format that doesn't match the displayed one. - Removes the fallback switch from the options (we now have a toggle for that built-in to fallback command managment). - Replaces the dock-wide seconds setting with per-clock customization. - Introduces a centralized service that updates all clocks. - Dynamically enables or disables updates for pages and bands based on whether they are currently in use. - Adds new option to select now dock band action (Open notification center or show All clock page). ## Pictures? Pictures!

## PR Checklist - [x] Closes: #49284 - [x] Closes: #48940 - [ ] **Communication:** I've discussed this with core contributors already. If the work hasn't been agreed, this work might be rejected - [ ] **Tests:** Added/updated and all pass - [ ] **Localization:** All end-user-facing strings can be localized - [ ] **Dev docs:** Added/updated - [ ] **New binaries:** Added on the required places - [ ] [JSON for signing](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ESRPSigning_core.json) for new binaries - [ ] [WXS for installer](https://github.com/microsoft/PowerToys/blob/main/installer/PowerToysSetup/Product.wxs) for new binaries and localization folder - [ ] [YML for CI pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/ci/templates/build-powertoys-steps.yml) for new test projects - [ ] [YML for signed pipeline](https://github.com/microsoft/PowerToys/blob/main/.pipelines/release.yml) - [ ] **Documentation updated:** If checked, please file a pull request on [our docs repo](https://github.com/MicrosoftDocs/windows-uwp/tree/docs/hub/powertoys) and link it here: #xxx ## Detailed Description of the Pull Request / Additional comments ## Validation Steps Performed

Sunbelt Computer Software

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