Add sound support for desktop notifications in Tauri v2

[Keerthi421]

Description : This PR adds sound support for desktop notifications in Tauri v2, which was previously only available on mobile platforms.

Changes:
-->Updated desktop.rs to use notify-rust's sound_name method for sound support on desktop platforms
-->Fixed Windows 7 compatibility implementation by properly enabling sound
-->Updated TypeScript API documentation to clarify how sound works across different platforms
-->Added documentation in README.md about the sound feature
-->Added an entry to CHANGELOG.md
-->Created test examples (sound-notification.js and sound-notification.html) that demonstrate the feature

Fixes #2671

[github-actions]

Package Changes Through 470f558

There are 9 changes which include deep-link with minor, deep-link-js with minor, single-instance with patch, fs with minor, fs-js with minor, http with patch, http-js with patch, opener with patch, opener-js with patch

Planned Package Versions

The following package releases are the planned based on the context of changes in this pull request.

package	current	next
api-example	2.0.25	2.0.26
api-example-js	2.0.21	2.0.22
deep-link-example-js	2.2.1	2.2.2
deep-link	2.2.1	2.3.0
deep-link-js	2.2.1	2.3.0
fs	2.2.1	2.3.0
fs-js	2.2.1	2.3.0
dialog	2.2.1	2.2.2
dialog-js	2.2.1	2.2.2
opener	2.2.6	2.2.7
opener-js	2.2.6	2.2.7
http	2.4.3	2.4.4
http-js	2.4.3	2.4.4
persisted-scope	2.2.1	2.2.2
single-instance	2.2.3	2.2.4

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