feat: "Parse multi-line layer descriptions correctly by removing newl…

…ines from layer names

Previously, if a user formatted the YAML key with the ? | syntax to
allow a multi-line string in the key, the parse_layer_description
function would not capture any characters past the first line.
Now, the replace() method is used to replace all newline characters
with a space, ensuring that descriptions are added correctly to the
rule in karabiner.json

karaml/karaml_config.py

@@ -278,6 +278,10 @@ def parse_layer_key(layer_name: str) -> tuple[str, str]:
     Returns a tuple of the layer name and the layer description as strings.
     """
 
+    # Remove newlines from the layer name in case the user formatted the YAML
+    # key with the `? |` syntax to allow a multi-line string in the key.
+    layer_name = layer_name.replace("\n", " ")
+
     layer_info = re.search(r"^(/.+/)(.*)", layer_name)
     if not layer_info:
         invalidLayerName(layer_name)