pure-writer: Fix livecheck & adjust URL (#126751)

* Fix livecheck & adjust URL

* Fix pkg name

* update livecheck, version

Co-authored-by: Bevan Kay <email@bevankay.me>

Casks/pure-writer.rb

@@ -1,14 +1,22 @@
 cask "pure-writer" do
-  version "1.4.0"
-  sha256 "5b89db4b166123fc997796e9a12e50d9dd53ab357ff8f71e488e29ea9a9969c0"
+  version "1.5.3,1.5.2"
+  sha256 "1924099569ce3049a22d23cb889a11276de1d175cb6ef301a64d9fc34448ce60"
 
-  url "https://github.com/PureWriter/desktop/releases/download/#{version}/PureWriter-#{version}-macOS.dmg",
+  url "https://github.com/PureWriter/desktop/releases/download/#{version.csv.second}/PureWriter-#{version.csv.first}-macOS.dmg",
       verified: "github.com/PureWriter/desktop/"
   name "Pure Writer Desktop"
   desc "Desktop version of the Android app"
   homepage "https://writer.drakeet.com/desktop"
 
-  pkg "PureWriter-#{version}.pkg"
+  livecheck do
+    url "https://github.com/PureWriter/desktop/releases"
+    regex(%r{href=.*?([^/]+)/PureWriter[._-]v?(\d+(?:\.\d+)+)-macOS\.dmg}i)
+    strategy :page_match do |page, regex|
+      page.scan(regex).map { |match| "#{match.second},#{match.first}" }
+    end
+  end
+
+  pkg "Pure Writer-#{version}.pkg"
 
   uninstall pkgutil: "com.drakeet.purewriter"