* feat(meta-pixel): add trackingEvent to zod schema * fix: do not allow trackingEvent to be optional * feat(meta-pixel): add trackingEvent selection dropdown to UI * feat(meta-pixel): add trackingEvent to Event Type App Data * fix(meta-pixel): implement history API hook for SPA conversion tracking * fix(meta-pixel): check for cancel in URL and prevent Re-wrapping of pushState * Update EventTypeAppSettingsInterface.tsx * fix: make trackingEvent optional in zod schema to fix type-check --------- Co-authored-by: Sahitya Chandra <sahityajb@gmail.com>