Remove some packages, fix some configs

Remove khal.el and org-modern to match nix changes

Fix capture template for reading list, rename file to reading.org

Add Org/calendar files to org-agenda (switch from calendar.org to
calendar files in calendar directory)

Fix (hopefully) setting up org-alert

README.org

@@ -524,13 +524,6 @@ For reference information, see [[https://orgmode.com][Org-mode website]]
   (keymap-global-set "C-c o a" #'org-agenda)
   (keymap-global-set "C-c o n" #'org-capture)
   (keymap-global-set "C-c o l" #'org-capture-goto-last-stored)
-
-  (use-package org-modern
-    :ensure t
-    :hook ((org-mode . org-modern-mode)
-           (org-agenda-finalize . org-modern-agenda))
-    :custom
-    (org-modern-tag nil))
 #+end_src
 
 ** org-agenda
@@ -539,6 +532,7 @@ For reference information, see [[https://orgmode.com][Org-mode website]]
         org-agenda-start-on-weekday 1
         org-agenda-files (list (expand-file-name org-directory)
                                (expand-file-name "journal" org-directory)
+                               (expand-file-name "calendar" org-directory)
                                (expand-file-name "projects" org-directory))
         org-agenda-sticky nil
         org-agenda-window-setup 'current-window
@@ -553,7 +547,9 @@ For reference information, see [[https://orgmode.com][Org-mode website]]
 #+begin_src emacs-lisp
   (use-package org-alert
     :ensure t
-    :after alert)
+    :after alert
+    :config
+    (org-alert-enable))
 #+end_src
 ** org-journal
 #+BEGIN_SRC emacs-lisp :results output silent
@@ -564,7 +560,6 @@ For reference information, see [[https://orgmode.com][Org-mode website]]
     (org-journal-file-type 'monthly)
     (org-journal-file-format "%Y-%m.org"))
 #+END_SRC
-
 ** Capture templates
 #+BEGIN_SRC emacs-lisp :results output silent
   (setq org-capture-templates
@@ -576,7 +571,7 @@ For reference information, see [[https://orgmode.com][Org-mode website]]
            "* TODO %?"
            :prepend t)
           ("r" "Reading List" entry
-           (file+headline "readling_list.org" "Inbox")
+           (file+headline "reading.org" "Inbox")
            "* %?")
           ("m" "Email Workflow")
           ("mf" "Follow Up" entry (file+olp "mail.org" "Follow Up")
@@ -642,20 +637,6 @@ For reference information, see [[https://orgmode.com][Org-mode website]]
                                  citar-indicator-cited-icons)))
 #+end_src
 
-** Khalel
-#+begin_src emacs-lisp :results output silent
-  (use-package khalel
-    :demand
-    :hook (org-agenda-mode . khalel-import-events)
-    :config
-    (khalel-add-capture-template "e")
-    :custom
-    (khalel-import-org-file (expand-file-name "calendar.org" org-directory))
-    (khalel-import-org-file-read-only nil)
-    (khalel-import-org-file-confirm-overwrite nil)
-    (khalel-import-start-date "-30d")
-    (khalel-import-end-date "+30d"))
-#+end_src
 ** TODO Crafted config
 #+BEGIN_SRC emacs-lisp