Applies changes from jsruntime Self and mem_guaranteed

Signed-off-by: Francis Bouvier <francis.bouvier@gmail.com>

src/dom/event_target.zig

@@ -1,13 +1,6 @@
 const parser = @import("../parser.zig");
 
 pub const EventTarget = struct {
-    base: ?*parser.EventTarget = null,
-
-    pub fn init(base: ?*parser.EventTarget) EventTarget {
-        return .{ .base = base };
-    }
-
-    pub fn constructor() EventTarget {
-        return .{};
-    }
+    pub const Self = parser.EventTarget;
+    pub const mem_guarantied = true;
 };