chore(release): v0.15.1

Author: JakeStanger

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "ironbar"
-version = "0.15.1-pre"
+version = "0.15.1"
 edition = "2021"
 license = "MIT"
 description = "Customisable GTK Layer Shell wlroots/sway bar"
@@ -157,4 +157,4 @@ futures-lite = { version = "2.3.0", optional = true } # workspaces, upower
 regex = { version = "1.10.4", default-features = false, features = [
   "std",
 ], optional = true } # music, sys_info
-zbus = { version = "3.15.2", default-features = false, features = ["tokio"], optional = true } # notifications, upower
+zbus = { version = "3.15.2", default-features = false, features = ["tokio"], optional = true } # notifications, upower