possibilité de partage un espace

src/components/WelcomeModal.tsx

@@ -1,4 +1,4 @@
-import { useState, useEffect } from 'react'
+import { useState } from 'react'
 
 interface WelcomeModalProps {
   isOpen: boolean
@@ -75,9 +75,12 @@ export function WelcomeModal({ isOpen, onClose }: WelcomeModalProps) {
             <p style={{ margin: '0 0 12px 0' }}>
               <strong>Warping:</strong> Double click on a note to warp between spaces.
             </p>
-            <p style={{ margin: '0' }}>
+            <p style={{ margin: '0 0 12px 0' }}>
               <strong>Delete :</strong> Backspace/Del to delete a note.
             </p>
+            <p style={{ margin: '0' }}>
+              <strong>Share:</strong> Type <code style={{ background: '#333', padding: '2px 4px', borderRadius: '2px' }}>share</code> in the nav console to share a space through a browser link (overrides the target).
+            </p>
           </div>
 
           <div style={{ marginBottom: '20px' }}>