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/npc-skill-category.hbs

@@ -0,0 +1,11 @@
+{{!-- Skill Category Partial for NPC Sheet --}}
+<div class="skill-category">
+  <h4>{{ localize categoryLabel }}</h4>
+  <div class="grid grid-2col">
+    {{#each system.skills as |skill key|}}
+      {{#ife skill.category categoryKey}}
+        {{> "systems/vermine2047/templates/actor/parts/npc-skill-item.hbs" skill=skill key=key}}
+      {{/ife}}
+    {{/each}}
+  </div>
+</div>