chore: sync plugin from AstrBotDevs/AstrBot#7818 (#759)

Co-authored-by: astrbot-plugin-copybara[bot] <261421607+astrbot-plugin-copybara[bot]@users.noreply.github.com>

Author: astrbot-plugin-copybara[bot]

plugins.json

@@ -1,4 +1,17 @@
 {
+  "astrbot-plugin-essentials": {
+    "display_name": "Essentials",
+    "desc": "一款集成权限、经济、安全、管理功能的 AstrBot 基础插件。",
+    "author": "季楠",
+    "repo": "https://github.com/CPJiNan/astrbot_plugin_essentials",
+    "tags": [
+      "权限",
+      "经济",
+      "安全",
+      "管理"
+    ],
+    "social_link": "https://github.com/CPJiNan"
+  },
   "astrbot-plugin-hardworking": {
     "display_name": "防摸鱼水群",
     "desc": "一个可以让bot在你想水群的时候提醒你不要水群的插件",