filetrees: remap winum-select-window-0-or-10

Problem:
`C-x w 0` calls `winum-select-window-0-or-10` which shows:
winum-select-window-by-number: No window numbered 10

Solution (Thanks Miciah):
Remap `winum-select-window-0-or-10` to the current filetree command:
`neotree-show` or `treemacs-select-window`

Then all three key bindings:
`C-x w 0`, `SPC 0` and `M-0` will call the same filetree command.

Additionally:
Renamed the remapped which-key name to the filetree command.

Wrapped lines to keep them under 80 chars.

CHANGELOG.develop

@@ -1785,6 +1785,8 @@ Other:
   - ~SPC 0~ and ~M-0~ are consistent across Neotree and Treemacs
 - Fixed ~RET~ binding functionality (thanks to Lupco Kotev)
 - Use "open" instead of "xdg-open" on macos (thanks to Alexander-Miller)
+- Remapped =winum-select-window-0-or-10= to =neotree-show= so that ~C-x w 0~,
+  ~SPC 0~ and ~M-0~ call the same command (thanks to duianto and Miciah)
 **** NixOS
 - Enabled Flycheck (thanks to William Casarin)
 - Defer loading (thanks to Benno Fünfstück)
@@ -2307,6 +2309,8 @@ Other:
 **** Treemacs
 - =Treemacs= replaces =NeoTree= as the default sidebar
 - Add missing ~SPC p t~ to =readme.org= (thanks to oo6)
+- Remapped =winum-select-window-0-or-10= to =treemacs-select-window= so that
+  ~C-x w 0~, ~SPC 0~ and ~M-0~ call the same command (thanks to duianto, Miciah)
 **** Typescript
 - Call tsfmt with extension of current buffer for TSX formatting
   (thanks to Victor Andrée)

layers/+filetree/neotree/packages.el

@@ -116,7 +116,10 @@ Navigation^^^^             Actions^^         Visual actions/config^^^
 (defun neotree/pre-init-winum ()
   (spacemacs|use-package-add-hook winum
     :post-config
-    ;; window 0 is reserved for file trees
-    (spacemacs/set-leader-keys "0" #'neotree-show)
-    (define-key winum-keymap (kbd "M-0") #'neotree-show)
-    (add-to-list 'winum-assign-functions #'spacemacs//winum-neotree-assign-func)))
+    ;; `0', `M-0' and `C-x w 0' are bound to `winum-select-window-0-or-10'
+    (define-key winum-keymap [remap winum-select-window-0-or-10] #'neotree-show)
+    ;; replace the which-key name
+    (push '((nil . "winum-select-window-0-or-10") . (nil . "neotree-show"))
+          which-key-replacement-alist)
+    (add-to-list 'winum-assign-functions
+                 #'spacemacs//winum-neotree-assign-func)))

layers/+filetree/treemacs/packages.el

@@ -85,10 +85,15 @@
   (spacemacs|use-package-add-hook winum
     :post-config
     (progn
-      ;; window 0 is reserved for file trees
-      (spacemacs/set-leader-keys "0" 'treemacs-select-window)
-      (define-key winum-keymap (kbd "M-0") 'treemacs-select-window)
+      ;; `0', `M-0' and `C-x w 0' are bound to `winum-select-window-0-or-10'
+      (define-key winum-keymap
+        [remap winum-select-window-0-or-10] #'treemacs-select-window)
+      ;; replace the which-key name
+      (push '((nil . "winum-select-window-0-or-10") .
+              (nil . "treemacs-select-window"))
+            which-key-replacement-alist)
       (with-eval-after-load 'treemacs
         (dolist (n (number-sequence 1 5))
           (add-to-list 'winum-ignored-buffers
-                       (format "%sFramebuffer-%s*" treemacs--buffer-name-prefix n)))))))
+                       (format "%sFramebuffer-%s*"
+                               treemacs--buffer-name-prefix n)))))))