[rules] Allow "if [" and "if[" in rules (#2987)

[TD-er]

Fixes: #2987

[uzi18]

@TD-er so please also add such change for elseif

ESPEasy/src/ESPEasyRules.ino

Lines 593 to 605 in 7dd8a7e

	lcAction.indexOf(F("elseif ")); // check for optional "elseif" condition
	if (split != -1) {
	// Found "elseif" condition
	isCommand = false;
	if (ifBlock && !fakeIfBlock) {
	if (ifBranche[ifBlock - 1]) {
	if (condition[ifBlock - 1]) {
	ifBranche[ifBlock - 1] = false;
	}
	else {
	String check = lcAction.substring(split + 7);