updateConditionalGroup(group) {
      const context = this.model && this.model.store ? { ...this.model.store.getState() } : this.model && this.model.data ? this.model.data : {};
      let conditionMet = false;
      for (const item of group) {
        if (item.type === "if" || item.type === "else-if") {
          const result = !conditionMet && ExpressionManager.evaluateExpression(item.expression, context);
          if (result) {
            item.element.style.display = "";
            conditionMet = true;
          } else {
            item.element.style.display = "none";
          }
        } else if (item.type === "else") {
          item.element.style.display = conditionMet ? "none" : "";
        }
      }
    }
Evaluates and updates the visibility of elements within a group of conditionals.

A group represents a logical chain of `data-if`, `data-else-if`, and `data-else` elements.
This method determines the first condition in the group that evaluates to `true`
and sets the corresponding element to be displayed while hiding others.

@param {Array<Object>} group - An array representing a logical group of conditionals.
Each object in the array contains:
   - {HTMLElement} element: The DOM element.
   - {string} type: The type of conditional ('if', 'else-if', 'else').
   - {string|null} expression: The conditional expression, null for 'else'.