Update devcontainer.json, reinintroduced missing png file, simplified instructions

.devcontainer/devcontainer.json

@@ -1,7 +1,6 @@
 {
-    "name": "Python 3",
-    // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-    "image": "mcr.microsoft.com/devcontainers/python:1-3.12-bookworm",
+    "name": "Ballot Initiative",
+    "image": "mcr.microsoft.com/devcontainers/python:1-3.13-bookworm",
     "customizations": {
       "vscode": {
         "settings": {},
@@ -11,17 +10,9 @@
         ]
       }
     },
-    "updateContentCommand": "[ -f packages.txt ] && sudo apt update && sudo apt upgrade -y && sudo xargs apt install -y <packages.txt; [ -f requirements.txt ] && pip3 install --user -r requirements.txt; pip3 install --user streamlit; echo '✅ Packages installed and Requirements met'",
+  "updateContentCommand": "sudo apt update && sudo apt upgrade -y && if ! command -v uv &> /dev/null; then curl -Ls https://astral.sh/uv/install.sh | sh && export PATH=\\\"$HOME/.cargo/bin:\\$PATH\\\"; fi && echo '✅ System updated and uv installed.'",
     "postAttachCommand": {
-      "server": "streamlit run app/Home.py"
+      "server": "uv run main.py"
     },
-    "portsAttributes": {
-      "8501": {
-        "label": "Application",
-        "onAutoForward": "openPreview"
-      }
-    },
-    "forwardPorts": [
-      8501
-    ]
-  }
+    "portsAttributes": {}
+}

README.md

@@ -122,8 +122,7 @@ An alternate approach to get up and running is to use [Github Codespaces](https:
 ### Running Project Tests
 
 1. Navigate to the project root folder
-2. Activate the virtual environment
-3. Run the following command:
+2. Run the following command:
 
    ```bash
    uv run pytest
@@ -132,8 +131,7 @@ An alternate approach to get up and running is to use [Github Codespaces](https:
 ### Running API
 
 1. Navigate to the project root folder
-2. Activate the virtual environment
-3. Run the following command:
+2. Run the following command:
 
    ```bash
    uv run fastapi dev app/api.py