feat(gh): list my stars (#1109)

Sometimes you know you starred something long time ago, the you go to
github.com your stars and search on the bar.

That's all good but wouldn't it be great to do that from the comfort of
nushell?

This pr does that.

You can test it with
```nu
gh my stars | explore
```

custom-completions/gh/gh-completions.nu

@@ -568,3 +568,37 @@ export def "gh pr view inlined-comments" [
       | select user.login body diff_hunk
       | rename user comment diff )
 }
+
+def "gh get stars" [
+    end_cursor: string = ""  # endCursor from a previous query
+    --first: int = 100  # returns the first n elements from the list
+] {
+    # https://docs.github.com/en/graphql/reference/objects#user
+    ^gh api graphql -F $'first=($first)' -F $'endCursor=($end_cursor)' -f query='
+      query($first: Int, $endCursor: String!){
+        viewer {
+          starredRepositories(first: $first, after: $endCursor, orderBy: {field: STARRED_AT, direction: DESC}) {
+            edges { node { url description } starredAt }
+            pageInfo { hasNextPage endCursor }
+          }
+        }
+      }
+    '
+    | from json | select data.viewer.starredRepositories.edges data.viewer.starredRepositories.pageInfo
+    | rename stars pageInfo
+}
+
+export def "gh my stars" [] {
+    mut stars = []
+    mut end_cursor = ""
+    loop {
+        let $part = gh get stars $end_cursor
+        $stars = $stars | append $part.stars
+        if $part.pageInfo?.hasNextPage? == true {
+            $end_cursor = $part.pageInfo.endCursor
+        } else {
+            break
+        }
+    }
+    $stars | flatten | update cells --columns [starredAt] {$in| date humanize} | sort-by starredAt
+}