IOS-5505 Add max count 999+ for badge counter

[ignatovv]

Summary

• Cap badge counter display at 999+ when count exceeds 999
• Move string formatting to init for better SwiftUI performance (avoids recalculation in body)

[claude]

Best Practices

CounterView.swift:15
The hardcoded string "999+" should be localized. Following CLAUDE.md guidelines, all user-facing text must use localization constants from the Loc module.

Add a key to one of the .xcstrings files (likely UI.xcstrings):

"Counter.Max" : {
  "extractionState" : "manual",
  "localizations" : {
    "en" : {
      "stringUnit" : {
        "state" : "translated",
        "value" : "%lld+"
      }
    }
  }
}

Then use it with:

self.text = count > 999 ? Loc.Counter.max(999) : "\(count)"

This ensures proper internationalization (some cultures may use different formatting or separators for large numbers).

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⚠️ Minor Issues - Localize "999+" string for internationalization