safe spectrum parameter updates (thx @mherger)

I've remove the dclone as I confuses me a bit and I don't think it's needed

plugin/SqueezeESP32/Graphics.pm

@@ -3,7 +3,6 @@ package Plugins::SqueezeESP32::Graphics;
 use strict;
 
 use base qw(Slim::Display::Squeezebox2);
-use Storable qw(dclone);
 
 use Slim::Utils::Prefs;
 use Slim::Utils::Log;
@@ -123,11 +122,8 @@ sub displayHeight {
 sub sanitizeSpectrum {
 	my ($spectrum) = shift;
 
-	$spectrum->{small} ||= dclone($SPECTRUM_DEFAULTS{small});
 	$spectrum->{small}->{size} ||= $SPECTRUM_DEFAULTS{small}->{size};
 	$spectrum->{small}->{band} ||= $SPECTRUM_DEFAULTS{small}->{band};
-
-	$spectrum->{full} ||= dclone($SPECTRUM_DEFAULTS{full});
 	$spectrum->{full}->{band} ||= $SPECTRUM_DEFAULTS{full}->{band};
 
 	return $spectrum;

plugin/SqueezeESP32/install.xml

@@ -10,6 +10,6 @@
   <name>PLUGIN_SQUEEZEESP32</name>
   <description>PLUGIN_SQUEEZEESP32_DESC</description>
   <module>Plugins::SqueezeESP32::Plugin</module>
-    <version>0.203</version>
+    <version>0.204</version>
   <creator>Philippe</creator>
 </extensions>

plugin/repo.xml

@@ -1,10 +1,10 @@
 <?xml version='1.0' standalone='yes'?>
 <extensions>
   <plugins>
-    <plugin version="0.203" name="SqueezeESP32" minTarget="7.9" maxTarget="*">
+    <plugin version="0.204" name="SqueezeESP32" minTarget="7.9" maxTarget="*">
       <link>https://github.com/sle118/squeezelite-esp32</link>
       <creator>Philippe</creator>
-      <sha>3dfa3cdc246ecdf3c827d3ec4a7c62190995fbbf</sha>
+      <sha>a4b8b38c148b518dcc89c559785df60b0fe332e0</sha>
       <email>philippe_44@outlook.com</email>
       <desc lang="EN">SqueezeESP32 additional player id (100)</desc>
       <url>http://github.com/sle118/squeezelite-esp32/raw/master/plugin/SqueezeESP32.zip</url>