Avoid using raw html in translations for links.

This is a followup to 26698d6 which introduced the html. It's better
to use interpolation for links, since this avoids the translations
from introducing html syntax errors.

I had to change the translation key, since changing the interpolation
variables alone would lead to breakages.

app/views/users/show.html.erb

@@ -191,7 +191,7 @@
     <div class="col-md order-md-last">
       <% if @user.home_lat.nil? or @user.home_lon.nil? %>
         <div id="map" class="content_map">
-          <p id="no_home_location"><%= t(".set_location_html", :edit_profile_url => edit_profile_path) %></p>
+          <p id="no_home_location"><%= t(".no_home_location_html", :edit_profile_link => link_to(t(".edit_your_profile"), edit_profile_path)) %></p>
         </div>
       <% else %>
         <% content_for :head do %>