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/maladies-poisons.html

@@ -1,5 +1,5 @@
 {{#if maladiesPoisons.length}}
-<h3 class="blessures-title">Maladies & Poisons:</h3>
+<h3 class="item-label">Maladies & Poisons:</h3>
 <ul class="item-list alterne-list">
   <li class="competence-header flexrow">
     <span class="competence-title flex-grow competence-label">Nom</span>