Add scraper for `nev` and `nevapp` unpublished opinions

[grossir]

2 reasons

• completeness
• "persuasive value":

From the "NEVADA RULES OF APPELLATE PROCEDURE, RULE 36. ENTRY OF JUDGMENT

(2) An unpublished disposition, while publicly available, does not establish mandatory precedent except in a subsequent stage of a case in which the unpublished disposition was entered, in a related case, or in any case for purposes of issue or claim preclusion or to establish law of the case.

(3) A party may cite for its persuasive value, if any, an unpublished disposition issued by the Supreme Court on or after January 1, 2016, or by the Court of Appeals on or after August 15, 2024. When citing such an unpublished disposition, the party must cite an electronic database, if available, and the docket number and date filed in the Supreme Court or Court of Appeals (with the notation “unpublished disposition”). A party citing such an unpublished disposition must serve a copy of it on any party not represented by counsel.

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We have been scraping only the advanced opinions, which are precedential. Latest "Unpublished" opinions for these courts are from a scraper. See freelawproject/courtlistener#7610 . Some may be wrongly labelled as "Published"

[grossir]

From #2010, there should be around 20k unpublished orders for both courts

"Order of Affirmance", "Order Dismissing Appeal", "Order Affirming in Part…", etc. A much larger bucket (~10k Supreme / ~9.3k Appeals).