Merge pull request #2304 from microbiomedata/linkml-issue-2438

Modify `Mappings` table to reduce redundancy

src/doc-templates/common_metadata.md.jinja2

@@ -82,9 +82,14 @@ Instances of this class *should* have identifiers with one of the following pref
 
 | Mapping Type | Mapped Value |
 | ---  | ---  |
-{% for m, mt in schemaview.get_mappings(element.name).items() -%}
+{% set native_mappings = schemaview.get_mappings(element.name).get('native', []) %}
+{%- for m, mt in schemaview.get_mappings(element.name).items() -%}
 {% if mt|length > 0 -%}
-| {{ m }} | {{ mt|join(', ') }} |
+    {% set display_key = 'mappings' if m == 'undefined' else m -%}
+    {% set filtered_mt = mt | reject('in', native_mappings) | list -%}
+    {% if filtered_mt|length > 0 -%}
+| {{ display_key }} | {{ filtered_mt|join(', ') }} |
+    {% endif -%}
 {% endif -%}
 {% endfor %}