Now that we use LogRecord, increase the field sizes to reasonable values

Note: this change is 'free' because LogRecord is only used in a union
inside of FromRadio and FromRadio is already larger than this.

meshtastic/mesh.options

@@ -40,8 +40,8 @@
 
 *Routing.variant anonymous_oneof:true
 
-*LogRecord.message max_size:64
-*LogRecord.source max_size:8
+*LogRecord.message max_size:384
+*LogRecord.source max_size:32
 
 *FileInfo.file_name max_size:228