Improve vertico usability

Add M-j/M-k, M-`, and M-1 to M-9 to match company

init.el

@@ -99,8 +99,23 @@
 ;; Vertico (completion helper)
 (use-package vertico
   :config
+  (keymap-set vertico-map "M-j" #'vertico-next)
+  (keymap-set vertico-map "M-k" #'vertico-previous)
+  (keymap-set vertico-map "M-`" #'vertico-exit)
   (vertico-mode))
 
+(use-package vertico-indexed
+  :after vertico
+  :init
+  (setq vertico-indexed-start 1)
+  :config
+  (dotimes (i 9)
+    (keymap-set vertico-map (format "M-%d" (+ i 1))
+                `(lambda () (interactive)
+                   (let ((current-prefix-arg (+ ,i 1)))
+                     (call-interactively #'vertico-exit)))))
+  (vertico-indexed-mode))
+
 ;; Editorconfig support
 (use-package editorconfig
   :config