Enhance setup scripts to detect OS and determine package manager

- Improved OS detection in bootstrap.sh and setup.sh to handle unsupported OS cases.
- Added a function to determine the package manager (nala, dnf, apt) based on the detected OS.
- Updated package installation commands to use the appropriate package manager.
- Enhanced user feedback with colored output for better visibility during setup and updates.

setup/bootstrap.sh

@@ -11,10 +11,48 @@ NC='\033[0m' # No Color
 
 echo -e "${GREEN}Setting up your system...${NC}"
 
+# Detect OS
+if [ -f /etc/os-release ]; then
+    . /etc/os-release
+    OS_NAME=$ID
+    OS_VERSION=$VERSION_ID
+else
+    echo -e "${YELLOW}Unable to detect OS, assuming Debian/Ubuntu...${NC}"
+    OS_NAME="ubuntu"
+    OS_VERSION="22.04"
+fi
+
+echo -e "${GREEN}Detected OS: ${OS_NAME} ${OS_VERSION}${NC}"
+
+# Function to determine the package manager to use
+determine_pkg_manager() {
+  if command -v nala &> /dev/null; then
+    echo "nala"
+  elif [ "$OS_NAME" = "fedora" ]; then
+    echo "dnf"
+  else
+    echo "apt"
+  fi
+}
+
+# Determine which package manager to use
+PKG_MANAGER=$(determine_pkg_manager)
+echo -e "${GREEN}Using package manager: $PKG_MANAGER${NC}"
+
 # Install git if not present
 if ! command -v git &>/dev/null; then
     echo -e "${YELLOW}Installing git...${NC}"
-    sudo apt update && sudo apt install -y git
+    case $PKG_MANAGER in
+        nala)
+            sudo nala install -y git
+            ;;
+        dnf)
+            sudo dnf install -y git
+            ;;
+        apt)
+            sudo apt update && sudo apt install -y git
+            ;;
+    esac
 fi
 
 # Create shell directory if it doesn't exist