improv(view): make workspace item sizing more dynamic

This makes the `workspace_bar` more responsive to different child sizes, which enables fixing the size of the smaller dimension of the screencopy, while allowing it to expand unrestricted in the larger dimension (to match the aspect ratio).

Cargo.toml

@@ -12,10 +12,16 @@ cosmic-comp-config = { git = "https://github.com/pop-os/cosmic-comp" }
 env_logger = "0.11.0"
 futures-channel = "0.3.25"
 gbm = "0.18.0"
-libcosmic = { git = "https://github.com/pop-os/libcosmic", default-features = false, features = ["tokio", "wayland", "single-instance", "multi-window", "winit"] }
+libcosmic = { git = "https://github.com/pop-os/libcosmic", default-features = false, features = [
+    "tokio",
+    "wayland",
+    "single-instance",
+    "desktop",
+    "multi-window",
+    "winit",
+] }
 cosmic-config = { git = "https://github.com/pop-os/libcosmic" }
-freedesktop-desktop-entry = "0.7.0"
-freedesktop-icons = "0.2.4"
+freedesktop-icons = "0.3.1"
 
 memmap2 = "0.9.0"
 tokio = "1.23.0"
@@ -26,7 +32,7 @@ itertools = "0.14.0"
 log = "0.4.20"
 i18n-embed-fl = "0.9.0"
 rust-embed = "8.1.0"
-rustix = { version = "0.38.30", features  = ["fs"] }
+rustix = { version = "0.38.30", features = ["fs"] }
 calloop-wayland-source = "0.4.0"
 aliasable = "0.1.3"
 futures-executor = { version = "0.3.31", features = ["thread-pool"] }