programs/nix-search-tv: add quotes to fix shell misinterpretation

[poseidon-rises]

Add quotes to the preview command in television integration to prevent the shell from interpreting options with <name> as writing the output of the command name to a file with the name of the remainder of the option name.

For example, when running the command to preview accounts.calendar.<name>.remote (nix-search-tv preview ...), the shell would interpret this as name > .remote, create the file .remote, and error out because the command name was not found.

Description

Checklist

• Change is backwards compatible.

• Code formatted with nix fmt or
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