Added cz-add-changes + cleanedup poshtheme

= Oh-My-Posh theme template change to not( continas ...) logic instead
  of an empty condition and an {{ else }}.
+ cz-add-changes will add any changes made to chezmoi

_home/dot_sz.shrc.d/97_chezmoi_aliases

@@ -3,6 +3,16 @@ if [[ -n "$(type -fP chezmoi)" ]]; then
   alias cz-refresh="chezmoi status | cut -d\  -f2 | grep '^\.sz\.shrc\.d' | xargs chezmoi forget --force; chezmoi add ~/.sz.shrc.d --recursive; chezmoi status; chezmoi git status"
   alias cz-commit="chezmoi git -- commit -a "
 
+  function cz-add-changes() {
+    pushd ~ > /dev/null
+    changes=$(chezmoi status | sed -n 's/^MM[ \t]\+//p')
+    for c in $changes; do
+      echo Adding $c
+      chezmoi add $c
+    done
+    popd > /dev/null
+  }
+
   function cz-set-ssh-github() {
     chezmoi git -- remote set-url origin "$(chezmoi git -- remote get-url origin | sed 's|https://github.com/|git@github.com:|')"
     chezmoi git -- remote get-url origin