fix: allow plain HTTP to DNS hosts for database connections (#1316)

[datlechin]

Summary

Fixes #1316. ClickHouse (and any HTTP-based driver) could not connect to plain-HTTP servers addressed by a DNS hostname (e.g. `xxx.example.com:8123`). App Transport Security blocked the request because only IP-addressed plain HTTP is exempt by default. Workaround was using the raw IP.

Root cause

No `NSAppTransportSecurity` key in Info.plist meant TablePro relied on Apple's defaults, which allow plain HTTP only to numeric IPs. DNS-addressed HTTP gets blocked at the URLSession layer.

Fix

Add to both macOS and iOS Info.plist:

```xml
NSAppTransportSecurity

NSAllowsArbitraryLoads


```

Standard approach for developer tools that connect to user-specified servers (TablePlus, Postman, Beekeeper, Sequel Ace, DBeaver all do the same).

Affected drivers

• ClickHouse HTTP (8123)
• Any future HTTP-based plugin

Native socket drivers (MySQL, PostgreSQL native protocol, Redis RESP, MongoDB wire protocol) bypass URLSession entirely and were never affected.

Test plan

• ClickHouse on remote host, plain HTTP, DNS hostname: connects
• ClickHouse on remote host, HTTPS, DNS hostname: still connects
• ClickHouse on raw IP: still works (regression check)
• MySQL / PostgreSQL / Redis (native socket): unaffected

Notes

The PR diff includes an unrelated `Localizable.xcstrings` cleanup (2 empty SSL string entries removed, 1 percent-format entry auto-removed). These got auto-generated by Xcode in a prior session and re-pruned. Safe to merge.