fix: disable show-paren-mode + terminal cursor blink for Zoom

- show-paren-mode OFF (idle redraw every 1s)
- Terminal cursor blink disabled via DECTCEM escape sequence
- Both are Zoom focus follower jump triggers

config.el

@@ -435,8 +435,15 @@
 ;; which-key — zvýšit repeat delay (1.8s timer)
 (setq which-key-idle-delay 2.0)
 
-;; show-paren — snížit frekvenci
-(setq show-paren-delay 1.0)
+;; show-paren — vypnout (způsobuje periodic redraw → Zoom jump)
+(remove-hook 'doom-first-buffer-hook #'show-paren-mode)
+(after! paren (show-paren-mode -1))
+
+;; Vypnout blikání kurzoru v terminálu (escape sekvence DECTCEM)
+(unless (display-graphic-p)
+  (send-string-to-terminal "\e[?12l")    ;; cursor blink OFF
+  (add-hook 'after-make-frame-functions
+            (lambda (_f) (send-string-to-terminal "\e[?12l"))))
 
 ;; Auto-revert: zvýšit interval, vypnout VC info check
 (setq auto-revert-interval 30)