Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

========

https://hg.mozilla.org/integration/gaia-central/rev/4d408c2b299e
Author: albertopq <albert.pastor@gmail.com>
Desc: Merge pull request #25006 from albertopq/1078904-landscape-shb

Bug 1078904 - Activities menu on fullscreen_layout landscape r=mhenretty

========

https://hg.mozilla.org/integration/gaia-central/rev/a260285f00ba
Author: albertopq <apastor@mozilla.com>
Desc: Bug 1078904 - Activities menu on fullscreen_layout landscape

========

https://hg.mozilla.org/integration/gaia-central/rev/ba9c6ee6eed5
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #24301 from julienw/1053708-rtl-interface

Bug 1053708 - Make SMS main User Interface RTL-friendly

========

https://hg.mozilla.org/integration/gaia-central/rev/328d9fa310c3
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1053708 - Make SMS main User Interface RTL-friendly r=asasypkin
Bumping manifests a=b2g-bump