show medium avatar in hovercard

Changelog.md

@@ -15,6 +15,7 @@
 * Fix src URL for oEmbed iFrame [#4178](https://github.com/diaspora/diaspora/pull/4178)
 * Add back-to-top button on tag and user pages [#4185](https://github.com/diaspora/diaspora/issues/4185)
 * Fix reopened issue by changing the comment/post submit keyboard sortcut to ctrl+enter from shift+enter [#3897](https://github.com/diaspora/diaspora/issues/3897)
+* Show medium avatar in hovercard [#4203](https://github.com/diaspora/diaspora/pull/4203)
 
 ## Features
 

app/presenters/hovercard_presenter.rb

@@ -13,7 +13,7 @@ class HovercardPresenter
   # hovercard UI
   def to_json(options={})
     {  :id => person.id,
-       :avatar => avatar('small'),
+       :avatar => avatar('medium'),
        :url => profile_url,
        :name => person.name,
        :handle => person.diaspora_handle,
@@ -23,7 +23,7 @@ class HovercardPresenter
 
   # get the image url of the profile avatar for the given size
   # possible sizes: 'small', 'medium', 'large'
-  def avatar(size="small")
+  def avatar(size="medium")
     if !["small", "medium", "large"].include?(size)
       raise ArgumentError, "the given parameter is not a valid size"
     end