Update dependencies and remove old matterclient lib (#2067)

vendor/github.com/gomarkdown/markdown/markdown.go

@@ -84,28 +84,7 @@ func ToHTML(markdown []byte, p *parser.Parser, renderer Renderer) []byte {
 	return Render(doc, renderer)
 }
 
-// NormalizeNewlines converts Windows and Mac newlines to Unix newlines
-// The parser only supports Unix newlines. If your mardown content
+// NormalizeNewlines converts Windows and Mac newlines to Unix newlines.
+// The parser only supports Unix newlines. If your markdown content
 // might contain Windows or Mac newlines, use this function to convert to Unix newlines
-func NormalizeNewlines(d []byte) []byte {
-	wi := 0
-	n := len(d)
-	for i := 0; i < n; i++ {
-		c := d[i]
-		// 13 is CR
-		if c != 13 {
-			d[wi] = c
-			wi++
-			continue
-		}
-		// replace CR (mac / win) with LF (unix)
-		d[wi] = 10
-		wi++
-		if i < n-1 && d[i+1] == 10 {
-			// this was CRLF, so skip the LF
-			i++
-		}
-
-	}
-	return d[:wi]
-}
+var NormalizeNewlines = parser.NormalizeNewlines