fix company-backends issue, and add keybinding to company-files

lisp/init-keybindings.el

@@ -124,6 +124,7 @@
  "f" 'ace-jump-char-mode ;; <<ajm-1>>
  "]" 'citre-peek
  "[" 'citre-jump-back
+ "C-/" 'company-files
  ;; ...
  )
 

lisp/init-packages.el

@@ -182,13 +182,9 @@ You need to install it manually. Continue?")
 			       company-sort-by-occurrence))
 
   (setq company-backends '(
-			   (company-tabnine
-			    company-capf
-			    company-keywords
-			    company-dabbrev
-			    company-ispell
+			   (company-tabnine company-capf company-keywords company-dabbrev company-ispell)
 			    company-files)
-			   ))
+			   )
 
   ;; add yasnippet support for all company backends.
   (defvar company-mode/enable-yas t
@@ -203,11 +199,9 @@ You need to install it manually. Continue?")
   ;; set the backends for org-mode
   (defun my-company-backends-org-mode-hook ()
     (setq-local company-backends '(
-          (company-tabnine
-		   company-dabbrev
-		   company-ispell
+				   (company-tabnine company-dabbrev company-ispell)
 				    company-files)
-          )))
+				   ))
   (add-hook 'org-mode-hook 'my-company-backends-org-mode-hook)
 
   ;; add `company-elisp' backend for elisp.