Issue: Add Support for Dynamic Image Loading

[jayademola]

Enhance image loading to support dynamic sources (e.g., external APIs, databases).

[BenjaminBrandmeier]

Hi @jayademola,

please consider the following alternative approaches on how to load images from a different data source:
https://github.com/BenjaminBrandmeier/angular2-image-gallery#different-use-cases