The page's end: 32/24 px, then the footer (plan 280) (#363)

ddiff --git a/apps/client/index.html b/apps/client/index.html
iindex afadf1e..1aa4304 100644
---- a/apps/client/index.html
++++ b/apps/client/index.html
@@@ -437,6 +437,7 @@
        }
        /* The fold: closed on a phone, and where there is room it looks like the section it replaces. */
        .gm-fold-block { margin: 0 auto 40px; max-width: 1100px; padding: 0 20px; }
++      .gm-fold-block:last-of-type { margin-bottom: 0; }
        .gm-fold-block > summary {
          display: flex;
          align-items: center;
@@@ -804,7 +805,8 @@
        }
        #ov-footer {
          max-width: 1200px;
--        margin: 0 auto;
++        margin-left: auto;
++        margin-right: auto;
        }
        /* Navigation that works without openvibe.network (roadmap WS-P task 5): shown until the shared
           navbar mounts, which fills #navbar-mount and hides this. One row exactly the navbar's 52px