feat(#4): Add comparison for versions, refactor version restoring

legalconsenthub/types/formDiff.ts

@@ -0,0 +1,31 @@
+export interface FormDiff {
+  elementsAdded: ElementChange[]
+  elementsRemoved: ElementChange[]
+  elementsModified: ElementModification[]
+}
+
+export interface ElementChange {
+  sectionTitle: string
+  title: string | undefined
+  type: string
+  position: number
+}
+
+export interface ElementModification {
+  sectionTitle: string
+  position: number
+  optionsAdded: OptionChange[]
+  optionsRemoved: OptionChange[]
+  optionsModified: OptionModification[]
+}
+
+export interface OptionChange {
+  value: string
+  label: string
+}
+
+export interface OptionModification {
+  value: string
+  labelChanged: { from: string; to: string }
+}
+