Remove stale link preview from share modal after create

The generated-link "Copy link:" row stayed visible after creating,
looking like the form hadn't reset — but the new link was already in
the Active links list with its own Copy button. Drop the redundant
preview row; on create, reset the form and briefly highlight the new
entry in the active list. Removes the now-dead shareNewLinkRow markup
and copyShareLink().

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

templates/index.html

@@ -1094,13 +1094,6 @@ document.addEventListener('DOMContentLoaded', applyI18n);
         </div>
         <button onclick="createShareLink()" style="height:30px;padding:0 14px;background:var(--accent);color:#fff;border:none;border-radius:5px;font-size:12px;cursor:pointer;flex-shrink:0" data-i18n="share_create">Create</button>
       </div>
-      <div id="shareNewLinkRow" style="display:none;margin-top:10px">
-        <div style="font-size:11px;color:var(--muted);margin-bottom:4px" data-i18n="share_copy_link_prompt">Copy link:</div>
-        <div style="display:flex;gap:6px;align-items:center">
-          <input id="shareNewLinkUrl" type="text" readonly style="flex:1;font-size:11px;padding:5px 8px;background:var(--bg2,var(--bg));border:1px solid var(--border);border-radius:5px;color:var(--text);min-width:0">
-          <button onclick="copyShareLink()" id="shareCopyBtn" style="height:26px;padding:0 10px;background:none;border:1px solid var(--border);color:var(--muted);border-radius:5px;font-size:11px;cursor:pointer;flex-shrink:0" data-i18n="log_copy">Copy</button>
-        </div>
-      </div>
     </div>
 
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