feat: sweep complet — tous les émojis → outline SVG icons

Templates modifiés (22 fichiers):
- _icons.html: +14 new icons (paperclip, external-link, sparkles, lightbulb, tag,
  file-text, save, upload, trending-up, zap, alert-triangle, user, eye-off)
- base.html: +8 JS icons, 🦎🐙🔑🔗👁📋🔲📑❓⚠️→SVG
- page_editor.html: 43→0 émojis (📎📄🔒🔗⭐📋📁✨📝🗄📑📊📅🗓🖼📥🌐✏💬💡 etc)
- settings.html: 30→0 (⚙️📋🏷🧩👥💾🙈👁🔒🌙☀️🌳📊📝⚠🦎✅🐙🔗✏🗑)
- local_workspace.html: 25→0 (📄📁✏🗑⚠📋➕)
- gitea_workspace.html: 25→0 (🔗📄📤🔄⚙📁📄🔒✏🗑💾)
- board.html: 13→0 (📁📊📋☰📈👥✕✓🗑⚡🔍)
- workspace.html: 11→0 (🏠🔑⚙📁🔗📂🐙)
- landing.html: 8→0 (📚🚀📝📊🦎🌐🔒⚡)
- trash.html, table_view, dashboard, accounts, card_detail, public_page,
  workspaces, team_load, notes, _header, detailed_board, card, board_fragment
- Ajouté import _icons.html aux fragments standalone
- 143 tests passent

app/templates/trash.html

@@ -1,12 +1,12 @@
 {% extends "base.html" %}
-{% block page_icon %}🗑️{% endblock %}
+{% block page_icon %}{{ fd_icon("trash",18) }}{% endblock %}
 {% block page_title %}Trash{% endblock %}
 {% block title_prefix %}Trash{% endblock %}
 
 {% block content %}
 <div class="page-title-area">
   <div class="page-title">
-    <span class="page-icon-lg">🗑️</span>
+    <span class="page-icon-lg">{{ fd_icon("trash",24) }}</span>
     <h1>Trash</h1>
   </div>
 </div>
@@ -14,7 +14,7 @@
 <div x-data="trashData()" style="padding: 0 24px; max-width: 800px;">
   <!-- Search -->
   <div style="position:relative; margin-bottom:12px;">
-    <span style="position:absolute; left:12px; top:50%; transform:translateY(-50%); color:var(--text-dim);">🔍</span>
+    <span style="position:absolute; left:12px; top:50%; transform:translateY(-50%); color:var(--text-dim);">{{ fd_icon("search",14) }}</span>
     <input type="text" placeholder="Search pages in Trash" x-model="search"
            style="width:100%; padding:8px 12px 8px 36px; background:var(--bg-tertiary); border:1px solid var(--border); border-radius:6px; color:var(--text-primary); font-size:14px; outline:none; box-sizing:border-box;">
   </div>
@@ -22,10 +22,10 @@
   <!-- Filters -->
   <div style="display:flex; gap:8px; margin-bottom:16px;">
     <button class="trash-filter active">
-      <span style="color:var(--accent);">👤</span> Last edited by ▾
+      <span style="color:var(--accent);">{{ fd_icon("user",14) }}</span> Last edited by ▾
     </button>
     <button class="trash-filter">
-      <span>📁</span> In ▾
+      <span>{{ fd_icon("folder",14) }}</span> In ▾
     </button>
   </div>
 
@@ -42,12 +42,12 @@
           ↩️
         </button>
         <button class="trash-item-btn" title="Delete permanently" @click="deleteForever(item.id)">
-          🗑️
+          {{ fd_icon("trash",14) }}
         </button>
       </div>
     </template>
     <div x-show="filteredItems.length === 0" class="lib-empty">
-      <div style="font-size:48px;margin-bottom:16px;">🗑️</div>
+      <div style="font-size:48px;margin-bottom:16px;">{{ fd_icon("trash",14) }}</div>
       <h3>Trash is empty</h3>
       <p>Deleted pages will appear here for 30 days.</p>
     </div>