Merge branch 'fix-w7apm-mh-root-prefixed' into 'master'

Fix W7APM in mh-root-prefixed

Closes #165

See merge request gridtracker.org/gridtracker!197

If this is changing anything in the UI or operational behavior, please prepare to update the wiki!

package.nw/data/mh-root-prefixed.json

@@ -2452,7 +2452,6 @@
       "=W6DDP",
       "=W6GTE",
       "=W6ROW",
-      "=W7APM",
       "=W7DDG",
       "=W7EIK",
       "=W7JMR",