refactor(config): Remove unused packages and

reorganize configuration

- Remove meow cursor configuration
- Remove nano-modeline package and configuration
- Re-enable default Doom modeline
- Comment out org-habit module
- Improve code formatting and indentation in org-mode config
- Remove stray "hello" text from config.org
- Reorganize org-mode sections for better clarity

init.el

@@ -37,7 +37,7 @@
        ;; indent-guides     ; highlighted indent columns
        ( ligatures +extras)         ; ligatures and symbols to make your code pretty again
        ;;minimap           ; show a map of the code on the side
-       ;; modeline          ; snazzy, Atom-inspired modeline, plus API
+       modeline          ; snazzy, Atom-inspired modeline, plus API
        ;;nav-flash         ; blink cursor line after big motions
        ;;neotree           ; a project drawer, like NERDTree for vim
        ophints           ; highlight the region an operation acts on