ASA Go: Unhide Guest Login

**Describe the task**

Prepare ASA Go for Public Access

**Acceptance Criteria**
- [ ] Add `PublicLoginButton` to `LoginActions` Component 
- [ ] Revamp Logic (B1E) `sessionMode !== "login" ` in `AuthWrapper`
- [ ] Unhide App in iOS

**Additional context**
- Blocked by: Splash screen w/ Raj & Risk Group #5428 
- Or here
