my-basic-modes: fix up bindings for preview

my-basic-modes.el

@@ -162,7 +162,7 @@
 
   ;; Configure other variables and modes in the :config section,
   ;; after lazily loading the package.
-  :config (setq consult-preview-key (kbd "M-."))
+  :config (setq consult-preview-key "M-.")
   ;; Optionally configure preview. The default value
   ;; is 'any, such that any key triggers the preview.
   ;; (setq consult-preview-key 'any)
@@ -171,12 +171,12 @@
   ;; For some commands and buffer sources it is useful to configure the
   ;; :preview-key on a per-command basis using the `consult-customize' macro.
   (consult-customize
-   consult-theme :preview-key '(kbd "M-.")
+   consult-theme :preview-key "M-."
    consult-ripgrep consult-git-grep consult-grep
    consult-bookmark consult-recent-file consult-xref
    consult--source-bookmark consult--source-file-register
    consult--source-recent-file consult--source-project-recent-file
-   :preview-key (kbd "M-."))
+   :preview-key "M-.")
 
   ;; Optionally configure the narrowing key.
   ;; Both < and C-+ work reasonably well.