fix: Set proper keybindings for zsh

sw/theme.nix

@@ -33,6 +33,18 @@ in
     programs.zsh = {
       enable = true;
 
+      initContent = ''
+        bindkey '^[[H' beginning-of-line # Home key
+        bindkey '^[[F' end-of-line       # End key
+        bindkey '^[[3~' delete-char      # Delete key
+        bindkey '^[[1~' beginning-of-line # Alternative Home key
+        bindkey '^[[4~' end-of-line       # Alternative End key
+        bindkey '^[[2~' overwrite-mode    # Insert key
+        bindkey '^[[5~' up-line-or-history   # Page Up
+        bindkey '^[[6~' down-line-or-history # Page Down
+        bindkey -e
+      '';
+
       # Plugins
       historySubstringSearch = {
         enable = true;