chore: import upstream snapshot with attribution

apps/webapp/app/utils/lerp.ts

@@ -0,0 +1,15 @@
+/** Linearly interpolates between the min/max values, using t.
+ * It can't go outside the range   */
+export function lerp(min: number, max: number, t: number) {
+  return min + (max - min) * clamp(t, 0, 1);
+}
+
+/** Inverse lerp */
+export function inverseLerp(min: number, max: number, value: number) {
+  return (value - min) / (max - min);
+}
+
+/** Clamps a value between a min and max */
+export function clamp(value: number, min: number, max: number) {
+  return Math.min(max, Math.max(min, value));
+}