Princess Kate has been urged to “pace herself” to ensure a gradual return to royal duties, according to new claims. The Princess of Wales held her first official meeting of the year on Tuesday, which was widely welcomed as a good sign of her recovery. The meeting at Windsor Castle came just eight days after Kate, 42, confirmed she had completed her chemotherapy. In a video message, the princess spoke of her relief that her “incredibly tough” treatment had come to an end and thanked the public for their “kindness, empathy and compassion”. Kate said she hoped to undertake “a few more public enga…