Add Emacs desktop provisioning and dev toolchain packages

Install Emacs and copy the desktop .emacs.d config so the editor setup is managed with the rest of desktop dotfiles. Add vterm/build/debug dependencies plus C/C++ and Go tooling needed by the configured workflow.

dotfiles/desktop/.emacs.d/lisp/core/ui.el

@@ -0,0 +1,82 @@
+;;; core-ui.el -*- lexical-binding: t; -*-
+
+;; Load default theme
+(use-package sublime-themes
+  :ensure t)
+
+(use-package soothe-theme
+  :ensure t)
+
+(use-package nordic-night-theme
+  :ensure t)
+
+(use-package timu-caribbean-theme
+  :ensure t)
+
+(load-theme 'nordic-night t)
+
+;; Setting default font
+(set-frame-font "Liberation Mono 14" nil t)
+
+(add-to-list 'default-frame-alist
+	     '(font . "Liberation Mono-14"))
+
+;; Remove toolbar
+(tool-bar-mode -1)
+
+;; Remove menu
+(menu-bar-mode -1)
+
+;; Disable startup screen
+(setq inhibit-startup-screen t)
+
+;; Disable splash screen
+(setq inhibit-splash-screen t)
+
+;; Start all frames maximized
+(add-to-list 'default-frame-alist '(fullscreen . maximized))
+
+;; Remove scrollbar
+(scroll-bar-mode -1)
+
+;; Simple 'y' for 'yes' and 'n' for 'no'
+(defalias 'yes-or-no-p 'y-or-n-p)
+
+;; Set global value for paragraph witdh
+(setq-default fill-column 120)
+
+;; Stop Emacs from losing informations
+(setq undo-limit 8000000)
+(setq undo-strong-limit 12000000)
+
+;; Smooth scroll
+(setq scroll-step 3)
+(setq ring-bell-function 'ignore)
+
+;; Add column number in the status line
+(column-number-mode)
+
+;; View clock in the status line
+(display-time)
+
+;; Enable line numbers in the programming mode only
+(add-hook 'prog-mode-hook 'display-line-numbers-mode)
+
+;; Enable line numbers in the configuration mode only
+(add-hook 'conf-mode-hook 'display-line-numbers-mode)
+
+;; Highlight keywords to remember the activity when coding.
+(use-package hl-todo
+  :ensure t
+  :commands (global-hl-todo-mode)
+  :init (global-hl-todo-mode))
+
+(setq hl-todo-keyword-faces
+      '(("TODO"   . "#94e2d5")
+        ("FIXME"  . "#f38ba8")
+        ("DEBUG"  . "#cba6f7")
+        ("GOTCHA" . "#eba0ac")
+        ("STUB"   . "#89b4fa")))
+
+(provide 'ui)
+;;; ui.el ends here