[WIP] feat: Add StacDynamicView parser for fetching and rendering API data

[divyanshub024]

Description

This PR adds a new StacDynamicView parser that enables fetching data from APIs and dynamically rendering it in STAC JSON templates. The implementation supports:

• Making HTTP requests to external APIs
• Extracting data from API responses using targetPath
• Applying data to templates using placeholders (e.g., {{fieldName}})
• Handling nested data structures
• Processing multiple placeholders in a single string

Example

Added a user profile example in the STAC Gallery that demonstrates fetching user data from the DummyJSON API and displaying it in a profile layout with:

• User image
• Name
• Email
• Phone
• Age

Type of Change

• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (fix or feature that would cause existing functionality to change)
• Code refactor
• Build configuration change
• Documentation
• Chore