xmonad: refactor config

.config/xmonad/leanamonad.cabal

@@ -0,0 +1,32 @@
+cabal-version:      3.0
+name:               leanamonad
+version:            0.1.0.0
+description:        Leana monad go brrr
+author:             Léana 江
+maintainer:         leana.jiang+git@icloud.com
+build-type:         Simple
+
+common common
+  ghc-options:
+    -Wall -Wcompat -Widentities -Wincomplete-record-updates
+    -Wincomplete-patterns -Wincomplete-uni-patterns
+    -Wredundant-constraints -Werror=missing-fields
+  build-depends:
+      base
+    , xmonad
+    , xmonad-contrib
+    , containers
+    , X11
+  default-language: GHC2021
+
+library
+  import: common
+  hs-source-dirs: lib
+  exposed-modules:
+    XMonad.Leana.Layouts.ReflectMsg
+
+executable leanamonad
+  import: common
+  main-is: xmonad.hs
+  build-depends:
+    leanamonad