unknown experimental features warning distorts the ui

[minhtrancccp]

`nix-env --version`

nix-env (Lix, like Nix) 2.93.0-dev-pre20250222-dd2241e
System type: x86_64-linux
Additional system types: i686-linux, x86_64-v1-linux, x86_64-v2-linux, x86_64-v3-linux
Features: gc, signed-caches
System configuration file: /etc/nix/nix.conf
User configuration files: /home/minhcccp/.config/nix/nix.conf:/nix/store/hinjagcw5fbv1hs2jk834c267kzszg6v-plasma-workspace-6.3.1/etc/xdg/nix/nix.conf:/nix/store/v8418h2gwf0qmhdh4zwvwhwrd0ylc8mi-kglobalacceld-6.3.1/etc/xdg/nix/nix.conf:/nix/store/xp09vpd55nl9l9ifrc9ad80zha8fg2sq-baloo-6.10.0/etc/xdg/nix/nix.conf:/home/minhcccp/.config/kdedefaults/nix/nix.conf:/nix/store/hinjagcw5fbv1hs2jk834c267kzszg6v-plasma-workspace-6.3.1/etc/xdg/nix/nix.conf:/nix/store/v8418h2gwf0qmhdh4zwvwhwrd0ylc8mi-kglobalacceld-6.3.1/etc/xdg/nix/nix.conf:/nix/store/xp09vpd55nl9l9ifrc9ad80zha8fg2sq-baloo-6.10.0/etc/xdg/nix/nix.conf:/nix/store/hinjagcw5fbv1hs2jk834c267kzszg6v-plasma-workspace-6.3.1/etc/xdg/nix/nix.conf:/nix/store/v8418h2gwf0qmhdh4zwvwhwrd0ylc8mi-kglobalacceld-6.3.1/etc/xdg/nix/nix.conf:/nix/store/xp09vpd55nl9l9ifrc9ad80zha8fg2sq-baloo-6.10.0/etc/xdg/nix/nix.conf:/home/minhcccp/.config/kdedefaults/nix/nix.conf:/etc/xdg/nix/nix.conf:/home/minhcccp/.nix-profile/etc/xdg/nix/nix.conf:/nix/profile/etc/xdg/nix/nix.conf:/home/minhcccp/.local/state/nix/profile/etc/xdg/nix/nix.conf:/etc/profiles/per-user/minhcccp/etc/xdg/nix/nix.conf:/nix/var/nix/profiles/default/etc/xdg/nix/nix.conf:/run/current-system/sw/etc/xdg/nix/nix.conf
Store directory: /nix/store
State directory: /nix/var/nix
Data directory: /nix/store/f2n2zsbmakz3h5xb2lxhs3kg1gx2c9dl-lix-2.93.0-dev-pre20250222-dd2241e/share

as i replace cppnix with lix, i have to change the experimental feature pipe-operators to pipe-operator (i.e. getting rid of the last s). as such, a warning message appears at the bottom of the terminal and causes trouble when new views are rendered as shown below

`nix-inspect`

if i temporarily redirect stderr to /dev/null, the app would render normally

`nix-inspect 2> /dev/null`

it would be great if nix-inspect handles this class of warnings properly, or better yet, support the system version of nix instead of hardcoding one