fix(templates): complete revision of actor templates to remove duplicates and fix inconsistencies

- Fixed grid-2 to grid-2col CSS class usage
- Replaced improper <p><a> tags with <div><a> in item lists (actor-weapons, actor-defenses, group-items, group-vehicles)
- Fixed typos: smarttlk -> smarttl, compétence -> Compétence
- Fixed duplicate class attributes
- Standardized HTML comments to Handlebars comments ({{!-- --}})
- Added missing localizations for Character and Skills headers
- Removed orphan {{/if}} tag in character-id.hbs
- Created npc-skill-category.hbs partial to eliminate 150+ lines of duplicated skill category code in actor-npc-sheet.hbs
- Created item-list.hbs partial for reusable item list display
- Fixed html.find(...).forEach error in roll.mjs by ensuring jQuery object
- Added .history/ to .gitignore

Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>

templates/actor/parts/item-list.hbs

@@ -0,0 +1,32 @@
+{{!-- Generic Item List Partial --}}
+{{!-- Usage: --}}
+{{!--   itemType - the localization key for the item type (e.g., 'ITEMS.abilities') --}}
+{{!--   items - the array of items to display --}}
+{{!--   createType - the data-type for creating new items --}}
+{{!--   showSkill - whether to show skill association (for specialties) --}}
+<h4>
+  <span>{{localize itemType}}</span>
+  <a class="item-control item-create" title="{{ localize 'UI.add' }}" data-type="{{createType}}">
+    <i class="fas fa-plus"></i>
+  </a>
+</h4>
+<ol class="list-item">
+  {{#each items as |item id|}}
+  <li class="item flexrow" data-item-id="{{item._id}}">
+    <div class="item-name" style="flex:4;">
+      <a class="item-control item-edit" title="{{ localize 'UI.effect_edit' }}">{{item.name}}</a>
+      {{#if showSkill}}
+        <span data-tooltip="{{ localize 'VERMINE.skill' }}">{{item.system.skill}}</span>
+      {{/if}}
+    </div>
+    <div class="item-controls flexrow">
+      {{#if item.system.description}}
+      <i class="fas fa-circle-question" data-tooltip="{{item.system.description}}"></i>
+      {{/if}}
+      <a class="item-control item-delete" title="{{ localize 'UI.effect_delete' }}">
+        <i class="fas fa-trash"></i>
+      </a>
+    </div>
+  </li>
+  {{/each}}
+</ol>