Theme fixes

Console:
- Enhance presentation of show/hide news links on home page
- Fix some issues with Arabic CSS (light/dark)
- Further tweaks to graphs display and fixes for borderless single graphs
  in midnight/dark themes
- Fix minor coloring issues with light theme post-rework
- Misc theme fixes

I2PSnark:
- Move </center> tag in fileinfo view that prevented sticky navbar from working
- ubergine:
  - Alternative panel tabs for embedded view
  - Tighten .snarkTorrents thead/tfoot spacing
  - Tweak embedded navbar coloring
  - Reduce height of download bars

router/java/src/net/i2p/router/RouterVersion.java

@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 21;
+    public final static long BUILD = 22;
 
     /** for example "-test" */
     public final static String EXTRA = "-rc";