podman-remote is not detected

There are circumstances where only `podman-remote` command is available but not `podman`:
https://github.com/flathub/com.visualstudio.code.tool.podman
It's also not feasible there to set `CONTAINER_HOST` env var and impossible at all to pass an extra `--podman-path` during `podman-compose` run, which could be a workaround in this case (as the command calls via VS Code extension which doesn't support that).

To address this, could we implement fall-back to `podman-remote` if `podman` is not available?
IIUC, that would also correspond to Docker behavior, which always works via socket.