Fix localization issues and export strings for translation

Changelog-Fixed: Fix localization issues and export strings for translation
Signed-off-by: Terry Yiu <git@tyiu.xyz>
Signed-off-by: William Casarin <jb55@jb55.com>

damusTests/LocalizationUtilTests.swift

@@ -0,0 +1,41 @@
+//
+//  LocalizationUtilTests.swift
+//  damusTests
+//
+//  Created by Terry Yiu on 7/13/23.
+//
+
+import XCTest
+@testable import damus
+
+final class LocalizationUtilTests: XCTestCase {
+
+    func testPluralizedString() throws {
+        let enUsLocale = Locale(identifier: "en-US")
+
+        // Test cases of the localization string key, and the expected en-US strings for a count of 0, 1, and 2.
+        let keys = [
+            ["followers_count", "Followers", "Follower", "Followers"],
+            ["following_count", "Following", "Following", "Following"],
+            ["imports_count", "Imports", "Import", "Imports"],
+            ["reactions_count", "Reactions", "Reaction", "Reactions"],
+            ["relays_count", "Relays", "Relay", "Relays"],
+            ["reposts_count", "Reposts", "Repost", "Reposts"],
+            ["sats", "sats", "sat", "sats"],
+            ["zaps_count", "Zaps", "Zap", "Zaps"],
+            ["word_count", "0 Words", "1 Word", "2 Words"]
+        ]
+
+        for key in keys {
+            XCTAssertEqual(pluralizedString(key: key[0], count: 0, locale: enUsLocale), key[1])
+            XCTAssertEqual(pluralizedString(key: key[0], count: 1, locale: enUsLocale), key[2])
+            XCTAssertEqual(pluralizedString(key: key[0], count: 2, locale: enUsLocale), key[3])
+            Bundle.main.localizations.map { Locale(identifier: $0) }.forEach {
+                for count in 1...10 {
+                    XCTAssertNoThrow(pluralizedString(key: key[0], count: count, locale: $0))
+                }
+            }
+        }
+    }
+
+}