feat(i18n): 주요 UI 하드코딩 문구를 I18n 키로 통일한다

SodaLive/Sources/Main/Home/BottomTabView.swift

@@ -16,7 +16,7 @@ struct BottomTabView: View {
             let tabWidth = width / 4
             
             TabButton(
-                title: "홈",
+                title: I18n.Main.Tab.home,
                 action: {
                     if currentTab != .home {
                         currentTab = .home
@@ -37,7 +37,7 @@ struct BottomTabView: View {
             )
             
             TabButton(
-                title: "라이브",
+                title: I18n.Main.Tab.live,
                 action: {
                     if currentTab != .live {
                         currentTab = .live
@@ -58,7 +58,7 @@ struct BottomTabView: View {
             )
             
             TabButton(
-                title: "채팅",
+                title: I18n.Main.Tab.chat,
                 action: {
                     if currentTab != .chat {
                         currentTab = .chat
@@ -79,7 +79,7 @@ struct BottomTabView: View {
             )
             
             TabButton(
-                title: "마이",
+                title: I18n.Main.Tab.my,
                 action: {
                     if currentTab != .mypage {
                         currentTab = .mypage