Introducing Sabius theme.

- Inspired by the duru theme from oh-my-bash: https://github.com/ohmybash/oh-my-bash/tree/master/themes/duru
- Minimalistic approach
- Git staged, unstaged and untracked status on every prompt
- New line for inputs

themes/sabius.zsh-theme

@@ -0,0 +1,60 @@
+prompt_end() {
+  # Adds the input to a new line prepended by a >
+  if [[ -n $CURRENT_BG ]]; then
+      print -n "%{%k%F{$CURRENT_BG}%}$SEGMENT_SEPARATOR"
+  else
+      print -n "%{%k%}"
+  fi
+
+  print -n "%{%f%}%{$fg[blue]"
+  CURRENT_BG=''
+
+  #Adds the new line and ➜ as the start character.
+  printf "\n> "
+}
+
+custom_git_branch() {
+  # Gets the current Git branch name and strips any additional formatting.
+  local branch_name=$(git branch --show-current 2>/dev/null)
+  echo $branch_name
+}
+
+git_changes_summary() {
+  local staged=$(git diff --cached --numstat | wc -l | tr -d ' ')
+  local unstaged=$(git diff --numstat | wc -l | tr -d ' ')
+  local untracked=$(git ls-files --others --exclude-standard | wc -l | tr -d ' ')
+  local summary=""
+
+  if [ "$staged" -ne "0" ]; then
+      summary="%{$fg[green]%}S:$staged"
+  fi
+
+  # Combining unstaged and untracked counts for the total number of changes not staged for commit
+  local total_unstaged=$((unstaged + untracked))
+
+  if [ "$total_unstaged" -ne "0" ]; then
+      if [ -n "$summary" ]; then
+          summary="$summary "
+      fi
+      summary="${summary}%{$fg[red]%}U:$total_unstaged"
+  fi
+
+  echo $summary
+}
+
+custom_git_prompt() {
+  if git rev-parse --git-dir > /dev/null 2>&1; then
+    local git_status="$(git status --porcelain=v1 2>/dev/null)"
+    local branch=$(custom_git_branch)
+    if [[ -n $git_status ]]; then
+      # Repository is dirty or has changes
+      echo "%{$fg[blue]%}on %{$fg[yellow]%}${branch} $(git_changes_summary)"
+    else
+      # Repository is clean
+      echo "%{$fg[blue]%}on %{$fg[yellow]%}${branch}"
+    fi
+  fi
+}
+
+PROMPT="%(?:%{$fg[green]%}%1{➜%}:%{$fg[red]%}%1{➜%})%{$reset_color%} %2~% "
+PROMPT+=' %{$fg[green]%}$(custom_git_prompt)%b$(prompt_end)%{$reset_color%}'