fix: de-emphasize Start button when server is already running (btn-ghost)

Author: ddrayko

public/js/app.js

@@ -2024,7 +2024,7 @@ async function renderServerDetail(serverId) {
             </div>
           </div>
           <div style="display:flex;gap:8px;flex-wrap:wrap">
-            <button class="btn btn-success btn-full" style="flex:1" onclick="sendPowerCommand('${s.identifier}','start',event)" ${s.currentState === 'running' ? 'disabled' : ''}>Start</button>
+            <button class="btn ${s.currentState === 'running' ? 'btn-ghost' : 'btn-success'} btn-full" style="flex:1" onclick="sendPowerCommand('${s.identifier}','start',event)" ${s.currentState === 'running' ? 'disabled' : ''}>Start</button>
             <button class="btn btn-warning btn-full" style="flex:1" onclick="sendPowerCommand('${s.identifier}','stop',event)" ${s.currentState !== 'running' ? 'disabled' : ''}>Stop</button>
             <button class="btn btn-ghost btn-full" style="flex:1" onclick="sendPowerCommand('${s.identifier}','restart',event)" ${s.currentState !== 'running' ? 'disabled' : ''}>Restart</button>
           </div>