chore: add gitpod config file for quick setup (#30921)

Co-authored-by: Debdut Chakraborty <[email protected]>

.gitpod.yml

@@ -0,0 +1,26 @@
+tasks:
+  - init: |
+      nvm install $(jq -r .engines.node package.json) &&
+      curl https://install.meteor.com/ | sh &&
+      export PATH="$PATH:$HOME/.meteor" &&
+      yarn &&
+      export ROOT_URL=$(gp url 3000)
+    command: yarn build && yarn dev
+
+ports:
+  - port: 3000
+    visibility: public
+    onOpen: open-preview 
+
+github:
+  prebuilds:
+    master: true
+    pullRequests: true
+    pullRequestsFromForks: true
+    addCheck: true
+    addComment: true
+    addBadge: true
+
+vscode:
+  extensions:
+    - esbenp.prettier-vscode       

README.md

@@ -67,6 +67,14 @@ yarn dsv # run only meteor (front and back) with pre-built packages
 
 After initialized, you can access the server at http://localhost:3000
 
+# Gitpod Setup
+
+1. Click the button below to open this project in Gitpod.
+
+2. This will open a fully configured workspace in your browser with all the necessary dependencies already installed.
+
+[![Open in Gitpod](https://gitpod.io/button/open-in-gitpod.svg)](https://gitpod.io/#https://github.com/RocketChat/Rocket.Chat)
+
 **Starting Rocket.Chat in microservices mode:**
 
 ```bash