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/board.html

@@ -1,5 +1,5 @@
 {% extends "base.html" %}
-{% block page_icon %}📁{% endblock %}
+{% block page_icon %}{{ fd_icon("folder",18) }}{% endblock %}
 {% block page_title %}Kanban board new{% endblock %}
 {% block title_prefix %}Kanban board new{% endblock %}
 
@@ -16,7 +16,7 @@
 <!-- Page title -->
 <div class="page-title-area">
   <div class="page-title">
-    <span class="page-icon-lg">📁</span>
+    <span class="page-icon-lg">{{ fd_icon("folder",24) }}</span>
     <h1>{{ repo }}</h1>
   </div>
 </div>
@@ -41,31 +41,31 @@
           hx-get="/board/{{ owner }}/{{ repo }}/view/kanban"
           hx-target="#view-content" hx-swap="innerHTML"
           @click="setActiveTab($el)">
-    <span class="tab-icon">📊</span> Kanban board
+    <span class="tab-icon">{{ fd_icon("bar-chart",14) }}</span> Kanban board
   </button>
   <button class="view-tab" data-view="detailed"
           hx-get="/board/{{ owner }}/{{ repo }}/view/detailed"
           hx-target="#view-content" hx-swap="innerHTML"
           @click="setActiveTab($el)">
-    <span class="tab-icon">📋</span> Detailed board
+    <span class="tab-icon">{{ fd_icon("list",14) }}</span> Detailed board
   </button>
   <button class="view-tab" data-view="table"
           hx-get="/board/{{ owner }}/{{ repo }}/view/table"
           hx-target="#view-content" hx-swap="innerHTML"
           @click="setActiveTab($el)">
-    <span class="tab-icon">☰</span> Table view
+    <span class="tab-icon">{{ fd_icon("align-left",14) }}</span> Table view
   </button>
   <button class="view-tab" data-view="status"
           hx-get="/board/{{ owner }}/{{ repo }}/view/status"
           hx-target="#view-content" hx-swap="innerHTML"
           @click="setActiveTab($el)">
-    <span class="tab-icon">📈</span> Status overview
+    <span class="tab-icon">{{ fd_icon("trending-up",14) }}</span> Status overview
   </button>
   <button class="view-tab" data-view="teamload"
           hx-get="/board/{{ owner }}/{{ repo }}/view/teamload"
           hx-target="#view-content" hx-swap="innerHTML"
           @click="setActiveTab($el)">
-    <span class="tab-icon">👥</span> Team Load
+    <span class="tab-icon">{{ fd_icon("users",14) }}</span> Team Load
   </button>
 </div>
 
@@ -111,7 +111,7 @@
             <span class="sort-direction" @click="toggleDir(i)">
               <span x-text="s.dir === 'asc' ? 'Ascending ↑' : 'Descending ↓'"></span>
             </span>
-            <button class="sort-delete" @click="removeSort(i)" title="Delete">🗑</button>
+            <button class="sort-delete" @click="removeSort(i)" title="Delete">{{ fd_icon("trash",14) }}</button>
           </div>
         </template>
         <button class="dropdown-option" @click="addSort()">+ Add sort</button>
@@ -119,8 +119,8 @@
       </div>
     </div>
   </div>
-  <button class="toolbar-btn" title="Properties">⚡</button>
-  <button class="toolbar-btn" title="Search">🔍</button>
+  <button class="toolbar-btn" title="Properties">{{ fd_icon("zap",14) }}</button>
+  <button class="toolbar-btn" title="Search">{{ fd_icon("search",14) }}</button>
   <button class="toolbar-btn">⋯</button>
   <button class="btn-new" @click="showNewIssue()">New ▾</button>
 </div>