Revise SPC f keybinds

- SPC f . -> counsel-file-jump or find-file
- SPC f > -> doom/browse-in-other-projects
- SPC f / -> projectile-find-file
- SPC f ? -> doom/find-file-in-other-project
- Moved doom/sudo-find-file to SPC f S

This change was made to accommodate the new
doom/browse-in-other-projects and doom/find-file-in-other-project
commands, which make it easy to jump to files in other known projects.

core/autoload/projects.el

@@ -33,6 +33,28 @@ they are absolute."
   (dolist (fn projectile-project-root-files-functions)
     (remhash (format "%s-%s" fn default-directory) projectile-project-root-cache)))
 
+;;;###autoload
+(defun doom/find-file-in-other-project (project-root)
+  "Preforms `projectile-find-file' in a known project of your choosing."
+  (interactive
+   (list
+    (completing-read "Find file in project: " (projectile-relevant-known-projects)
+                     nil nil nil nil (doom-project-root))))
+  (unless (file-directory-p project-root)
+    (error "Project directory '%s' doesn't exist" project-root))
+  (doom-project-find-file project-root))
+
+;;;###autoload
+(defun doom/browse-in-other-project (project-root)
+  "Preforms `find-file' in a known project of your choosing."
+  (interactive
+   (list
+    (completing-read "Browse in project: " (projectile-relevant-known-projects)
+                     nil nil nil nil (doom-project-root))))
+  (unless (file-directory-p project-root)
+    (error "Project directory '%s' doesn't exist" project-root))
+  (doom-project-browse project-root))
+
 
 ;;
 ;; Library