replace hardcoded default video ratio

pandora/config.0xdb.jsonc

@@ -878,6 +878,8 @@
     "userLevels": ["guest", "member", "friend", "staff", "admin"],
     "video": {
         "formats": ["webm", "mp4"],
+        // fixme: this should be named "ratio" or "defaultRatio",
+        // as it also applies to clip lists (on load)
         "previewRatio": 1.7777777778,
         "resolutions": [96]
     }

static/js/pandora/clipList.js

@@ -5,8 +5,7 @@
 pandora.ui.clipList = function(videoRatio) {
 
     var ui = pandora.user.ui,
-        // FIXME: don't hardcode 16/9
+        fixedRatio = !ui.item ? pandora.site.video.previewRatio : videoRatio,
-        fixedRatio = !ui.item ? 16/9 : videoRatio,
         isClipView = !ui.item ? ui.listView == 'clip' : ui.itemView == 'clips',
         isEmbed = pandora.isEmbedURL(),
         that = Ox.IconList({

static/js/pandora/embedNavigation.js

@@ -2,7 +2,7 @@
 
 pandora.ui.embedNavigation = function(type) {
 
-    var that = pandora.ui.navigationView(type, 16/9);
+    var that = pandora.ui.navigationView(type, pandora.site.video.previewRatio);
 
     that.resizePanel = function() {
         pandora.$ui.map.resizeMap();

static/js/pandora/sequencesDialog.js

@@ -9,7 +9,7 @@ pandora.ui.sequencesDialog = function() {
             width: Math.round(window.innerWidth * 0.9)
         },
         left = getLeft(),
-        fixedRatio = 16/9,
+        fixedRatio = pandora.site.video.previewRatio,
         fps = 25,
         item = pandora.getItemIdAndPosition(),
         itemWidth = 160,