Add support for svg collections, add svg browser pagination and filtering

svg collections must be added manually to the svg directory

svg.py

@@ -3,16 +3,28 @@ import config
 from common import memoize, listify_output
 
 @listify_output
-def list_all():
-    for i in glob.glob(os.path.join(config.svgdir, "*.svg")):
-        yield os.path.basename(i)[:-4]
-        
-        
+def list_all(collection = None):
+    if collection:
+        for i in glob.glob(os.path.join(config.svgdir, collection, "*.svg")):
+            yield os.path.join(collection, os.path.basename(i)[:-4])
+    else:
+        for i in glob.glob(os.path.join(config.svgdir, "*.svg")):
+            yield os.path.basename(i)[:-4]
+
+@listify_output
+def list_collections():
+    for i in glob.glob(os.path.join(config.svgdir, "*")):
+        if not i.endswith(".svg"):
+            yield os.path.basename(i)
+
+    
 @memoize
 def get(name):
     with open(os.path.join(config.svgdir, f"{name}.svg"), "r") as f:
         return f.read()
 
+
+
 def store(name, data):
     with open(os.path.join(config.svgdir, f"{name}.svg"), "wb" if type(data) is bytes else "w") as f:
         return f.write(data)