Update the Media Gallery description text to read as follows:
The Media Gallery is a simple carousel viewing experience for media on the [Geo Web alpha spatial browser](https://geoweb.app/). .glb and .usdz (iOS only) files can be viewed in AR through the spatial browser on compatible devices.
Enable the 4 image file types (jpg, png, svg, & gif) for upload, but not others (video, audio)
Make the changes to the Cadastre Media Gallery modal corresponding to the changes called for in https://github.com/Geo-Web-Project/browser/issues/76.
The Media Gallery is a simple carousel viewing experience for media on the [Geo Web alpha spatial browser](https://geoweb.app/). .glb and .usdz (iOS only) files can be viewed in AR through the spatial browser on compatible devices.