Add native geopoint property support

[LaiArturs]

This PR adds native support for geopoint properties in FireCMS, addressing the need to store and edit geographic coordinates without custom implementations.

Changes

Geopoint Property Support

• Implements GeopointFieldBinding component with dual number inputs for latitude and longitude
• Adds GeopointPropertyPreview component for displaying coordinates in tables and cards
• Provides geopoint utility functions for parsing, formatting, and normalizing coordinate values
• Integrates geopoint into default field configurations with LocationOnIcon
• Updates documentation with usage examples, validation rules, and API references

Features:

• Built-in validation for latitude (-90 to 90) and longitude (-180 to 180)
• Formatted coordinate display (e.g., "37.7749, -122.4194")
• Support for clearable option
• Compatible with existing GeoPoint class from Firestore

Example usage:

location: buildProperty({
    name: "Location",
    dataType: "geopoint",
    validation: { required: true }
})

Editor Package Fixes

• Fixes TypeScript build errors in the editor package that were blocking compilation
• Adds missing @tiptap/extension-list and @tiptap/extensions dependencies
• Adds type annotations where TipTap type definitions are incomplete

Closes #112