Use delegate crate to simplify things a bit.

Cargo.lock

@@ -871,6 +871,7 @@ dependencies = [
  "clap",
  "cosmic-comp-config",
  "cosmic-config",
+ "delegate",
  "env_logger",
  "futures-channel",
  "gbm",
@@ -1042,6 +1043,17 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5c297a1c74b71ae29df00c3e22dd9534821d60eb9af5a0192823fa2acea70c2a"
 
+[[package]]
+name = "delegate"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4801d755ab05b6e25cbbf1afc342993aafa00e572409f9ee21633a19e609d9f"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.41",
+]
+
 [[package]]
 name = "derivative"
 version = "2.2.0"