spectrogram view now updates itself

homepage/footer.html

@@ -19,7 +19,7 @@ a {
 <p>	<a href="https://github.com/mcguirepr89/BirdNET-Pi" target="_top">Project Page</a> | 
 	<a href="https://birdnetwiki.pmcgui.xyz" target="content">Wiki Help Page</a> | 
 	<a href="http://birdnetpi.local/stream" target="footer">Live Audio Stream</a> | 
-	<a href="http://birdnetpi.local/spectrogram.png" target="content">Realtime Spectrogram</a> | 
+	<a href="http://birdnetpi.local/spectrogram.php" target="content">Realtime Spectrogram</a> | 
 	<a href="external.html" target="content">Links to External Pages</a> | 
 	<a href="https://www.accuweather.com" target="content">Weather</a> | 
 	<a href="https://www.birds.cornell.edu" target="_content">The Cornell Lab of Ornitology</a>

homepage/mobile.html

@@ -432,7 +432,7 @@ footer {
 					<tr class="file">
 						<td></td>
 						<td>
-							<form action="/spectrogram.png">
+							<form action="/spectrogram.php">
                                                     	    <input type="submit" value="Spectrogram View">
 							</form>