Better handling of preference height (follow-up to story #6341)

- tasks #6928: bug with footer/account maintenance that overlap each others
- tasks #6914: resize of browser updates elements height

Change-Id: If6a5a67a045ae7797de34bd00be19c8819363ea9
Merge commit 'refs/changes/93/2493/1' of http://gerrit.tuleap.net/tuleap into HEAD

* http://gerrit.tuleap.net/tuleap:
  Better handling of preference height (follow-up to story #6341)

Change-Id: I79de64e80cecf616e613190ee07c51ac95430065
This is Tuleap 7.0.99.45

Change-Id: I3af00283d24d4f4586c57f3004bdd2bacc59b78c