Use alphanumeric sorting for animation icon packs

Otherwise it will missort numbers like "11" and "1"

Cargo.lock

@@ -2,6 +2,12 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "alphanumeric-sort"
+version = "1.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77e9c9abb82613923ec78d7a461595d52491ba7240f3c64c0bbe0e6d98e0fce0"
+
 [[package]]
 name = "anyhow"
 version = "1.0.66"
@@ -535,6 +541,7 @@ dependencies = [
 name = "parrotd"
 version = "0.1.0"
 dependencies = [
+ "alphanumeric-sort",
  "glib",
  "gtk",
  "libappindicator",

Cargo.toml

@@ -10,3 +10,4 @@ libappindicator = "0.7"
 gtk = "0.15"
 glib = "0.15"
 sysinfo = "0.26"
+alphanumeric-sort = "1.4"

src/pack.rs

@@ -69,7 +69,7 @@ impl IconPack {
             icons.push(name.split_at(name.len() - ".png".len()).0.to_string());
         }
 
-        icons.sort(); // Alphanumerical ordering
+        alphanumeric_sort::sort_str_slice(&mut icons); // Alphanumerical ordering
 
         let num_icons = icons.len();