improve(i18n): move potion to strings, add content.json for generic content

dist/habitrpg-shared.js

@@ -11255,8 +11255,12 @@ _.each(gearTypes, function(type) {
 
 api.potion = {
   type: 'potion',
-  text: "Health Potion",
-  notes: "Recover 15 Health (Instant Use)",
+  text: (function() {
+    return i18n.t('potionText');
+  }),
+  notes: (function() {
+    return i18n.t('potionNotes');
+  }),
   value: 25,
   key: 'potion'
 };

locales/en/content.json

@@ -0,0 +1,4 @@
+{
+  "potionText": "Potion",
+  "potionNotes": "Recover 15 Health (Instant Use)"
+}

script/content.coffee

@@ -300,7 +300,7 @@ _.each gearTypes, (type) ->
   ---------------------------------------------------------------
 ###
 
-api.potion = type: 'potion', text: "Health Potion", notes: "Recover 15 Health (Instant Use)", value: 25, key: 'potion'
+api.potion = type: 'potion', text: (-> i18n.t('potionText')), notes: (-> i18n.t('potionNotes')), value: 25, key: 'potion'
 
 ###
    ---------------------------------------------------------------