fix: remove cultural identifiers from protocol titles for consistency

Cultural context remains in descriptions. Titles now uniformly use the
practice name without prefixing the culture, country, religion, or people.
e.g. 'Quaker Meeting for Worship' -> 'Meeting for Worship',
'Moroccan Jmaa Village Assembly' -> 'Jmaa Village Assembly',
'Aboriginal Yarning Circle' -> 'Yarning Circle'.

43 titles updated across the seed library.

seeds/zulu-imbizo.yaml

@@ -1,5 +1,5 @@
 id: zulu-imbizo
-title: Zulu Imbizo Royal Assembly
+title: Imbizo Royal Assembly
 description: >-
   A Zulu practice in which a king or senior chief calls an imbizo — a
   gathering of all men of the nation or region — to hear matters and