Show correct letter case in transaction confirmation page

**Describe the bug**

All letters are shown as UPPER CASE in transaction confirmation page. It's incorrect because some data in transaction is case insensitive.

**To Reproduce**
Steps to reproduce the behavior:
1. try to broadcast a transaction, e.g. send funds with a memo
2. See error

**Expected behavior**
A clear and concise description of what you expected to happen.

**Screenshots**
If applicable, add screenshots to help explain your problem.

**Desktop (please complete the following information):**
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

**Smartphone (please complete the following information):**
- Device: [e.g. iPhone6]
- OS: [e.g. iOS8.1]
- Browser [e.g. stock browser, safari]
- Version [e.g. 22]

**Additional context**
Add any other context about the problem here.

Use the transaction confirmation page and the broadcast flow with a memo as the starting point. The issue identifies no file, test, or entry point, so first locate the confirmation-page implementation and reproduce the uppercase display. Done means the transaction data is shown with the correct letter case rather than uniformly uppercased.

Written by the indexing model from the issue text.