config/default: split into evil/emacs files

Done to better facilitate a non-evil config.

- Adds winum (and enables support for it in doom-modeline)
- Adds expand-region (#1231)
- Uses default smartparens config for non-evil users (WIP)

modules/config/default/+emacs.el

@@ -0,0 +1,32 @@
+;;; config/default/+emacs.el -*- lexical-binding: t; -*-
+
+(require 'projectile) ; we need its keybinds immediately
+
+
+;;
+;;; Reasonable defaults
+
+(setq shift-select-mode t)
+(delete-selection-mode +1)
+
+(def-package! expand-region
+  :commands (er/contract-region er/mark-symbol er/mark-word)
+  :config
+  (defun doom*quit-expand-region ()
+    "Properly abort an expand-region region."
+    (when (memq last-command '(er/expand-region er/contract-region))
+      (er/contract-region 0)))
+  (advice-add #'evil-escape :before #'doom*quit-expand-region)
+  (advice-add #'doom/escape :before #'doom*quit-expand-region))
+
+
+(def-package! winum
+  :after-call (doom-switch-window-hook)
+  :config (winum-mode +1))
+
+
+;;
+;;; Keybinds
+
+(when (featurep! +bindings)
+  (load! "+emacs-bindings"))