Add helm completion for mu4e

It still can’t do everything; e.g. i still have to use ~ido~ when selecting a folder to open.

configuration.org

@@ -2227,6 +2227,20 @@ Then configure ~real-auto-save-mode~
    ("m" . mu4e)))
 #+END_SRC
 
+*** Helm completion
+
+#+BEGIN_SRC emacs-lisp
+(use-package helm-mu
+  :after mu4e
+  :bind
+  (:map mu4e-main-mode-map
+        ("s" . helm-mu)
+        :map mu4e-headers-mode-map
+        ("s" . helm-mu)
+        :map mu4e-view-mode-map
+        ("s" . helm-mu)))
+#+END_SRC
+
 * Make programming a bit easier
 
 ** Electric case

customizations.el

@@ -107,6 +107,7 @@
      helm-github-stars
      helm-gtags
      helm-hunks
+     helm-mu
      helm-projectile
      helm-pydoc
      helm-smex