[base] Remove oh-my-zsh and add ripgrep, exa, and bat

Author: auguwu

images/base/Dockerfile

@@ -36,7 +36,7 @@ RUN apt update && \
   apt upgrade -y && \
   apt install -y sudo git curl neofetch git-lfs ca-certificates \
                 unzip zip bash vim nano python3 python3-pip libarchive-tools gnupg lsb-release pkg-config \
-                libssl-dev tree htop jq zsh oh-my-zsh
+                libssl-dev tree htop jq zsh ripgrep exa bat
 
 # Setup the user environment
 RUN groupadd -g ${USER_GID} ${USERNAME} && \