Update permissions API status to important (#119)

After discussion at Mozilla, we concluded that this API is going to be
critical to ensuring that user control over online experience.

Closes #19.

activities.json

@@ -80,8 +80,8 @@
     "ciuName": "permissions-api",
     "description": "The Permissions Standard defines common infrastructure for other specifications that need to interact with browser permissions. It also defines an API to allow web applications to query and request changes to the status of a given permission.",
     "mozBugUrl": null,
-    "mozPosition": "under consideration",
-    "mozPositionDetail": null,
+    "mozPosition": "important",
+    "mozPositionDetail": "Mozilla believes that the ability to work with user permissions is critical for user agency.  There are certain aspects of the API that are not suitable for the permissions model used in Firefox and so we would like to work on improving several aspects of the API.  In particular, we think that the way that status of permissions needs to more accurately reflect the different states that exist or could exist.  We also think that the interactions with Feature Policy need to be better clarified.  We're committed to fixing this, because permissions has become critical in making the web a more capable platform and it is important to ensure that we preserve user control over their online experience.",
     "mozPositionIssue": 19,
     "org": "W3C",
     "title": "Permissions",