update image_category_wall as screenshot datasource does not have cat…

…egory column; this is not ideal and ought to be solved in another way.

Also, could I get categories from the metadata? That's... ugh.

backend/lib/selenium_scraper.py

@@ -536,7 +536,7 @@ def search(self, query):
         self.start_selenium(eager=(hasattr(self, "eager_selenium") and self.eager_selenium))
         # Returns to default position; i.e., 'data:,'
         self.reset_current_page()
-        # Sets timeout to 60
+        # Sets timeout to 60; can be updated later if desired
         self.set_page_load_timeout()
 
         # Normal Search function to be used To be implemented by descending classes!

processors/visualisation/image_category_wall.py

@@ -44,7 +44,8 @@ def is_compatible_with(cls, module=None, user=None):
 		
 		:param module: Dataset or processor to determine compatibility with
 		"""
-		return module.type.startswith("image-to-categories") or module.type.startswith("image-downloader")
+		# TODO: cannot run on image-downloader-screenshots-search as it does not have a category column!
+		return module.type.startswith("image-to-categories") or (module.type.startswith("image-downloader") and not module.type not in ["image-downloader-screenshots-search"])
 
 	@classmethod
 	def get_options(cls, parent_dataset=None, user=None):