Checkout Page Not Opening : Fix

Details

Checkout page not opening issue fix
Introduced a delay of 500 ms of delay before opening the iOS native checkout page.

Details	Description
Asana/Jira link	N/A
Slack thread	N/A
Design source	N/A
Tech Specs	N/A
Product Specs	N/A
Related PRs	N/A
Breaking change (with back-support)	Yes
Documentation update needed	Yes
QA sign-off	No need
Deployment Checklist JiraId	N/A
Test Case Document URL	Please paste test case document link here....

This is to identify if BVT needs to be added for the new changes. So, either of the two labels can be added: Testing or TestingNotRequired.
If label Tested is added then test cases document URL is mandatory.
Link added should be a valid URL and accessible throughout the org.
If the branch name contains hotfix / revert by default the BVT workflow check for adding new test will pass.

[x] **Dev Testing Done
[x] **Sanity Testing Done
[x] Manual testing or integration testing done.
[ ] **QA Sign-Off given
[ ] Updated/Added Unit Tests.
[ ] Analytics event added if new feature
[x] **Ensure all functions / code-blocks are wrapped in try/catch at some level (Non critical errors should not bubble up to cause payment blockers)
[x] **Ensure all errors are captured using error-service with severity levels
[x] Added explanatory comment for tricky code explaining "why".
[x] **Tested on major devices / simulators.
[x] Detailed description about this PR added ?

Details	JIRA Link
N/A	N/A