Display incoming UTF-8 natively, convert only outgoing to ISO-8859-1

- Stop converting incoming text to ISO-8859-1 for display
- Terminal is UTF-8, so pass through directly (åäö, Cyrillic, etc.)
- Keep ISO-8859-1 conversion only for outgoing messages
- Add irc.log to .gitignore

main.c

@@ -441,10 +441,9 @@ static void handle_line(char *line)
 	size_t rawlen = strlen(line);
 	log_raw(line, rawlen);
 
-	char converted[BUF_SIZE];
-
-	to_iso8859_1((unsigned char *)line, strlen(line),
-	             converted, sizeof(converted));
+	/* Incoming text is displayed as-is (terminal is UTF-8).
+	 * No conversion needed for display. */
+	char *converted = line;
 
 	if (strncmp(converted, "PING ", 5) == 0) {
 		irc_send_raw("PONG %s", converted + 5);