OBM Connect QGIS 4 compatibility

<b>OBM Connect</b> is a QGIS plugin designed to allow users to seamlessly connect to the OpenBioMaps database from within the QGIS environment.<br><br>Its main functionalities include:<ul><li><b>User Authentication:</b> Enables users to log in directly to their OpenBioMaps account.</li> <li><b>Spatial Data Access:</b> Allows authenticated users to conveniently browse, select, and load spatial layers and datasets from OpenBioMaps into QGIS.</li> <li><b>Integrated Workflow:</b> Streamlines data-import workflows for biodiversity, ecological, and environmental projects by providing direct access to official OpenBioMaps repositories.</li></ul>This plugin is ideal for researchers, ecologists, and GIS specialists who regularly work with biodiversity and environmental spatial data, ensuring efficient access to up-to-date datasets while maintaining secure credential management.