Move Firefox fallback where it's actually needed
Move Firefox fallback where it's actually needed

It worked because we modify a reference and applyCommit() was executed before showCommitTooltip().
But it was error prone.
event.x / y are used in showCommitTooltip(), so the fallback should belong there too.

nicoespeon/gitgraph.js,nicoespeon/gitgraph.js,nicoespeon/gitgraph.js,prrmichel/gitgraph.js,nicoespeon/gitgraph.js