core: Optimize window/layer rule application and scanning (#8735)

Optimizes window and layer rule parsing and later usage.

src/desktop/LayerRule.hpp

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <string>
+#include <cstdint>
+
+class CLayerRule {
+  public:
+    CLayerRule(const std::string& rule, const std::string& targetNS);
+
+    enum eRuleType : uint8_t {
+        RULE_INVALID = 0,
+        RULE_NOANIM,
+        RULE_BLUR,
+        RULE_BLURPOPUPS,
+        RULE_DIMAROUND,
+        RULE_IGNOREALPHA,
+        RULE_IGNOREZERO,
+        RULE_XRAY,
+        RULE_ANIMATION,
+        RULE_ORDER,
+        RULE_ZUMBA,
+    };
+
+    eRuleType         ruleType = RULE_INVALID;
+
+    const std::string targetNamespace;
+    const std::string rule;
+};