UI feedback

Console:
- Increase contrast of table rows on profile/tunnels/peers tables
- Changed pink font to magenta in /logs to increase legibility
- Soften H3 headings in sidebar
- Single click to select I2P Version and Running Environment table text, with
  table:hover color change and text cursor to better reflect selection
  - Modify text above to indicate what exactly needs to be included in logs
- Reduce size of monospace dests in peers/profiles/tunnels, add additional
  spacing (responsive)
- Fix resizing of sidebar reseed button
- De-emphasise siderbar app icons with background-blend-mode: luminosity
- Change sidebar snark icon to match homepage icon
- Bump div.main text color from #222 to #333 (reduce contrast)

i2ptunnel: Increase vertical spacing of H2/H3's

SusiDNS: Change address helper icon to add book icon

i2psnark:
- Remove font-adjust-size (ubergine/vanilla)
  - Was probably causing the navbar links to display too large on some setups
- Add extra spacing to screenlogger bullets (ubergine)

apps/i2psnark/java/src/org/klomp/snark/web/I2PSnarkServlet.java

@@ -2862,7 +2862,7 @@ public class I2PSnarkServlet extends BasicServlet {
         buf.append(title);
         buf.append("</TITLE>\n").append(HEADER_A).append(_themePath).append(HEADER_B)
            // hide javascript-dependent buttons when js is unavailable
-           .append("<noscript><style>.script {display: none;}</style></noscript>")
+           .append("<noscript><style type=\"text/css\">.script {display: none;}</style></noscript>")
            .append("<link rel=\"shortcut icon\" href=\"" + _themePath + "favicon.ico\">\n");
         if (showPriority)
             buf.append("<script src=\"").append(_contextPath).append(WARBASE + "js/folder.js\" type=\"text/javascript\"></script>\n");