Fix merge manifest issue causing platform samples not to build

[alabiaga]

Fixes #366

[gemini-code-assist]

Summary of Changes

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This pull request resolves a critical build failure within the platform samples by strategically managing Android manifest merge conflicts. It ensures that modules requiring a higher minimum SDK version can coexist with the main application without forcing a global minSdk update, while also providing clear guidance to users about the specific Android version requirements for certain samples.

Highlights

• Resolve Manifest Merge Conflict: Addressed a build issue where platform samples failed to build due to manifest merge conflicts related to minSdk requirements of certain libraries.
• Override Library minSdk: Implemented tools:overrideLibrary in AndroidManifest.xml for com.example.platform.storage and androidx.photopicker.compose to allow these modules to use a higher minSdk (34) without affecting the main app's minSdk.
• Clarify Android Version Requirement: Updated the StorageApiSurface description in ApiSurface.kt to explicitly warn users that these samples require Android 14 or higher.

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[gemini-code-assist]

Code Review

This pull request successfully resolves a manifest merger issue by using tools:overrideLibrary to handle conflicting minSdk versions from dependencies. Additionally, it updates the description for the Storage API surface to warn users about the new minimum SDK requirement. The changes are effective, but I have a couple of suggestions to improve code style and readability in the AndroidManifest.xml and ApiSurface.kt files.