fix:: incorrect return types

src/VizBlocks.cpp

 #include "VizBlocks.h"
 
-VizBlocks(char* id, char* ssid, char* wifi_pass,
+VizBlocks::VizBlocks(char* id, char* ssid, char* wifi_pass,
           char* server, int port) : _id(id), _server(server), _port(port), _ssid(ssid), _wifi_pass(wifi_pass)
 {};
 
@@ -71,7 +71,7 @@ void VizBlocks::MQTT_connect()
 	Serial.println("MQTT Connected!");
 };
 
-int VizBlocks::input_event(String input)
+String VizBlocks::input_event(String input)
 {
 	return process(input);
 };
@@ -227,7 +227,7 @@ void VizBlocks::mqtt_command()
 	}
 };
 
-int VizBlocks::process_command(String command, String args)
+String VizBlocks::process_command(String command, String args)
 {
 	Serial.println("Processing <"+command+"> <"+args+">");
 	Behaviour* b = _behaviours.get(command);
@@ -280,7 +280,7 @@ int VizBlocks::process_command(String command, String args)
 	}
 };
 
-int VizBlocks::process(String input)
+String VizBlocks::process(String input)
 {
 
 	if (!(input.indexOf("<") >= 0 || input.indexOf(">") >= 0 || input.indexOf("-") >= 0))