chore: remove preview/ directory

glossy/src/utils.typ

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+// Returns the provided value if it is not none, otherwise returns the default value
+// Parameters:
+//   val: The value to check
+//   default: The fallback value to use if val is none
+// Returns: val if not none, otherwise default
+#let __default(val, default) = if val == none { default } else { val }
+
+// Converts an English word to its plural form following standard English pluralization rules
+// Parameters:
+//   word: The singular word to pluralize
+// Returns: The pluralized form of the word, or none if input is none
+#let __pluralize(word) = {
+  // early exit with invalid input
+  if word == none {
+    return none
+  }
+
+  // Define helper functions for checking endings
+  let ends_with = (suffix) => lower(word).ends-with(suffix)
+  let ends_with_any = (suffixes) => suffixes.any((suffix) => ends_with(suffix))
+
+  // Handle special cases for "es" endings (s, x, z, sh, ch)
+  if ends_with_any(( "s", "x", "z", "sh", "ch" )) {
+    word + "es"
+  } else if ends_with("y") and not ends_with_any(( "a", "e", "i", "o", "u" )) {
+    // Convert y to ies when y follows a consonant
+    word.slice(0, -1) + "ies"
+  } else if ends_with("f") {
+    // Convert f to ves
+    word.slice(0, -1) + "ves"
+  } else if ends_with("fe") {
+    // Convert fe to ves
+    word.slice(0, -2) + "ves"
+  } else {
+    // Default case: just add s
+    word + "s"
+  }
+}