fix: workspace cards edit/delete + remaining workspaces emojis

- ✏️→edit SVG (card rename button)
- 🔗→link SVG (Gitea section title, Connect button)
- 🔍→removed (search placeholder)
- 🔒→lock SVG (private project indicator)
- 143 tests passent

app/templates/workspaces.html

@@ -63,7 +63,7 @@
           <div class="ws-card-name" x-text="ws.name"></div>
           <div class="ws-card-count" x-text="ws.page_count+' page(s)'"></div>
           <div class="ws-card-actions" @click.stop>
-            <button class="btn-sm" @click="renameWs(ws)">✏️</button>
+            <button class="btn-sm" @click="renameWs(ws)">{{ fd_icon("edit",14) }}</button>
             <button class="btn-sm" style="color:var(--danger);border-color:rgba(255,80,80,.3)" @click="deleteWs(ws)">{{ fd_icon("trash",14) }}</button>
           </div>
         </div>
@@ -76,12 +76,12 @@
 
   <!-- ── Gitea Projects ── -->
   <div class="ws-section">
-    <div class="ws-section-title">🔗 Gitea Projects <span class="badge" x-text="giteaTotal"></span></div>
+    <div class="ws-section-title">{{ fd_icon("link",16) }} Gitea Projects <span class="badge" x-text="giteaTotal"></span></div>
 
     <!-- Not linked -->
     <div class="gitea-empty" x-show="giteaStatus==='not_linked'">
       <div>Connect your Gitea account to see your projects.</div>
-      <a class="gitea-connect" href="/auth/login?provider=gitea&mode=link">🔗 Connect Gitea</a>
+      <a class="gitea-connect" href="/auth/login?provider=gitea&mode=link">{{ fd_icon("link",14) }} Connect Gitea</a>
       <span style="margin:0 8px;color:var(--text-dim);">or</span>
       <a class="gitea-connect" href="/auth/login?provider=gitea">{{ fd_icon("edit",14) }} Register with Gitea</a>
     </div>
@@ -119,7 +119,7 @@
           </template>
         </div>
         <!-- Search -->
-        <input type="text" class="search-input" x-model="giteaSearch" placeholder="🔍 Filter projects…" style="width:200px;padding:6px 10px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:13px;outline:none;">
+        <input type="text" class="search-input" x-model="giteaSearch" placeholder="Filter projects…" style="width:200px;padding:6px 10px;background:var(--bg-tertiary);border:1px solid var(--border);border-radius:6px;color:var(--text);font-size:13px;outline:none;">
       </div>
 
       <!-- Project cards (filtered) -->
@@ -139,7 +139,7 @@
                   <span x-text="proj.name"></span>
                 </div>
                 <div class="ws-card-count">
-                  <span x-show="proj.private" style="margin-right:6px">🔒</span>
+                  <span x-show="proj.private" style="margin-right:6px">{{ fd_icon("lock",14) }}</span>
                   <span x-text="proj.description || proj.language || ''" style="display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px;"></span>
                 </div>
               </div>