[emacs] fix typo in srcery-theme

emacs/.config/doom/packages.el

@@ -64,7 +64,7 @@
 (package! smog)
 
 ;; pretty tings up
-(package! srcery-themes)
+(package! srcery-theme)
 (package! kaolin-themes)
 (package! nyan-mode)
 (package! emojify)