Fix: labels for / id

- Ajout de "for" sur labels
- suppression d'id inutiles
- corrections de for="xp" incorrects
- simplification css alchimie-title/blessure-title

templates/actor/possessions.html

@@ -1,6 +1,6 @@
 {{#if possessions.length}}
 {{!-- Possession --}}
-<h3 class="blessures-title">Possession:</h3>
+<h3 class="item-label">Possession:</h3>
 <ul class="item-list alterne-list">
   <li class="competence-header flexrow">
     <span class="competence-title flex-grow competence-label">Nom</span>