[UIKIT-3585] chore: update pkg.json desc and keywords (#485)

To improve the search ranking in npm searches.
Applied [this
request](https://sendbird.slack.com/archives/C024Q3BGCRL/p1680836891899919)

Author: AhyoungRyu

package.json

@@ -1,7 +1,24 @@
 {
   "name": "@sendbird/uikit-react",
   "version": "3.4.4",
-  "description": "React based UI kit for sendbird",
+  "description": "Sendbird UIKit for React: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.",
+  "keywords": [
+    "sendbird",
+    "uikit",
+    "react",
+    "chat",
+    "messaging",
+    "real-time",
+    "UI components",
+    "user authentication",
+    "channel management",
+    "SDK integration",
+    "customizable",
+    "feature-rich",
+    "social app",
+    "customer support",
+    "API"
+  ],
   "main": "dist/index.js",
   "style": "dist/index.css",
   "typings": "dist/index.d.ts",

samples/groupchannel/package.json

@@ -2,6 +2,24 @@
   "name": "groupchannel",
   "private": true,
   "version": "0.0.0",
+  "description": "Sendbird UIKit GroupChannel Sample for React: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.",
+  "keywords": [
+    "sendbird",
+    "uikit",
+    "react",
+    "chat",
+    "messaging",
+    "real-time",
+    "UI components",
+    "user authentication",
+    "channel management",
+    "SDK integration",
+    "customizable",
+    "feature-rich",
+    "social app",
+    "customer support",
+    "API"
+  ],
   "type": "module",
   "scripts": {
     "dev": "vite",

samples/openchannel/package.json

@@ -3,6 +3,24 @@
   "private": true,
   "version": "0.0.0",
   "type": "module",
+  "description": "Sendbird UIKit OpenChannel Sample for React: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.",
+  "keywords": [
+    "sendbird",
+    "uikit",
+    "react",
+    "chat",
+    "messaging",
+    "real-time",
+    "UI components",
+    "user authentication",
+    "channel management",
+    "SDK integration",
+    "customizable",
+    "feature-rich",
+    "social app",
+    "customer support",
+    "API"
+  ],
   "scripts": {
     "dev": "vite",
     "build": "vite build",

samples/typescript_sample/package.json

@@ -2,6 +2,24 @@
   "name": "@sendbird/uikit-react-typescript-sample",
   "version": "0.1.0",
   "private": true,
+  "description": "Sendbird UIKit TS Sample for React: A feature-rich and customizable chat UI kit with messaging, channel management, and user authentication.",
+  "keywords": [
+    "sendbird",
+    "uikit",
+    "react",
+    "chat",
+    "messaging",
+    "real-time",
+    "UI components",
+    "user authentication",
+    "channel management",
+    "SDK integration",
+    "customizable",
+    "feature-rich",
+    "social app",
+    "customer support",
+    "API"
+  ],
   "dependencies": {
     "@sendbird/uikit-react": "^3.4.2",
     "@testing-library/jest-dom": "^5.16.4",