Optimise Dash tooltips

When you press "enter" when a search result is shown, Dash tries to
show the FQN of the result by parsing the file and directory structure.
This fails for doxdox so we just show the result name (which should
already be the FQN).

Author: Kapeli

templates/dash/plist.hbs

@@ -12,5 +12,7 @@
     <true/>
     <key>DashDocSetFamily</key>
     <string>dashtoc</string>
+    <key>DashDocSetDeclaredInStyle</key>
+    <string>originalName</string>
 </dict>
 </plist>