Add kubectx and kubens support to Dockerfile and bash completion scripts

docker/motd

@@ -15,7 +15,7 @@
   ║    - lfk     : LFK kubernetes management                       ║
   ║    - k9s     : interactive cluster navigation                  ║
   ║    - helm    : chart install, upgrade, and rollback            ║
-  ║    - plus    : kubectx, kubens, jq, yq, and more               ║
+  ║    - plus    : kubectx, kubens, jq, yq, vim, and more          ║
   ║                                                                ║
   ╠════════════════════════════════════════════════════════════════╣
   ║  Quick start                                                   ║

docker/profile/20-k8s-tools-completion.sh

@@ -13,6 +13,14 @@ if [ -n "${BASH_VERSION:-}" ]; then
   if [ -r /etc/bash_completion.d/helm ]; then
     . /etc/bash_completion.d/helm
   fi
+
+  if [ -r /etc/bash_completion.d/kubectx ]; then
+    . /etc/bash_completion.d/kubectx
+  fi
+
+  if [ -r /etc/bash_completion.d/kubens ]; then
+    . /etc/bash_completion.d/kubens
+  fi
 fi
 
 alias k=kubectl