Refactor doom-debug-mode

+ Add explain-pause-mode
+ Now reloads itself if doom-debug-variables is changed or when one of
  its variables becomes available.
+ doom-debug-variables now supports a cons cell entry where its CAR is
  the name of the variable and CDR is the value it should be set to when
  doom-debug-mode is active.

modules/tools/lsp/+eglot.el

@@ -1,7 +1,5 @@
 ;;; tools/lsp/+eglot.el -*- lexical-binding: t; -*-
 
-;; TODO set eglot-events-buffer-size to nil in doom-debug-mode
-
 (use-package! eglot
   :commands eglot eglot-ensure
   :hook (eglot-managed-mode . +lsp-init-optimizations-h)
@@ -20,6 +18,9 @@
     :implementations #'eglot-find-implementation
     :type-definition #'eglot-find-typeDefinition
     :documentation #'+eglot-lookup-documentation)
+
+  (add-to-list 'doom-debug-variables '(eglot-events-buffer-size . 0))
+
   (when (featurep! :checkers syntax)
     (after! flycheck
       (load! "autoload/flycheck-eglot")))

modules/tools/lsp/+lsp.el

@@ -44,6 +44,8 @@ should be a deliberate act (as is flipping this variable).")
         lsp-enable-on-type-formatting nil)
 
   :config
+  (pushnew! doom-debug-variables 'lsp-log-io 'lsp-print-performance)
+
   (setq lsp-intelephense-storage-path (concat doom-cache-dir "lsp-intelephense/")
         lsp-vetur-global-snippets-dir (expand-file-name "vetur"
                                                         (or (bound-and-true-p +snippets-dir)

modules/tools/magit/config.el

@@ -18,6 +18,8 @@ For example, diffs and log buffers. Accepts `left', `right', `up', and `down'.")
         transient-values-file  (concat doom-etc-dir "transient/values")
         transient-history-file (concat doom-etc-dir "transient/history"))
   :config
+  (add-to-list 'doom-debug-variables 'magit-refresh-verbose)
+
   (setq transient-default-level 5
         magit-diff-refine-hunk t ; show granular diffs in selected hunk
         ;; Don't autosave repo buffers. This is too magical, and saving can