browser-client: Downgrade browser console log levels

Throughout time, OBS has logged browser console.log errors as warnings
in the OBS log as an easy way for browser source developers to
find and fix issues with their pages. Unfortunately, this functionality
seems to be almost completely ignored by many browser source providers.
This logging does, however, clog up many OBS logs and result in
readability issues when troubleshooting unrelated problems.

browser-client.cpp

@@ -678,11 +678,11 @@ bool BrowserClient::OnConsoleMessage(CefRefPtr<CefBrowser>,
 	const char *code = "Info";
 	switch (level) {
 	case LOGSEVERITY_ERROR:
-		errorLevel = LOG_WARNING;
+		errorLevel = LOG_DEBUG;
 		code = "Error";
 		break;
 	case LOGSEVERITY_FATAL:
-		errorLevel = LOG_ERROR;
+		errorLevel = LOG_INFO;
 		code = "Fatal";
 		break;
 	default: