Add frosted glass blur effect to PvotNavBar

[Roniscend]

Fixes : #13

[Copilot]

Pull request overview

This PR introduces a frosted-glass blur effect to PvotNavBar by integrating the Haze library and wiring a shared HazeState from the app screen content into the nav bar.

Changes:

• Add Haze and Haze Materials dependencies via version catalog and module Gradle files.
• Extend PvotNavBar with an optional hazeState parameter and apply hazeChild styling when provided.
• Update MainActivity showcase to create/remember a HazeState, apply .haze(...) to content, and pass the state into PvotNavBar.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
gradle/libs.versions.toml	Adds Haze dependency coordinates to the version catalog.
design-system/.../PvotNavBar.kt	Adds optional haze support to the nav bar surface via hazeChild and transparent container.
design-system/build.gradle.kts	Pulls in Haze dependencies for the design-system module.
app/src/main/.../MainActivity.kt	Demonstrates haze usage by applying .haze(...) to content and passing HazeState to the nav bar.
app/build.gradle.kts	Pulls in Haze dependencies for the app module (needed for direct usage in MainActivity).

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