View fixes, bound dimension fixes, code QoL

See NEWS.rst

models/analytic_structure.py

@@ -326,6 +326,9 @@
             xpath = f"//field[@name='{subfield}']" + xpath
         for node in doc.xpath(xpath):
             if not subfield and list(node.iterancestors(tag="field")):
+                # This xpath caught an analytic_dimensions field within another field;
+                # this must be a sub-view embedded within main view (eg sale.order.line
+                # within sale.order views).
                 continue
             parent = node.getparent()
             attrs_to_copy = node.attrib