不跟系统的暗黑模式，保持light模式；增加本地日志的读取；接入firebase

AIGrammar/View/GrammarCheckView.swift

@@ -7,6 +7,7 @@
 
 import SwiftUI
 import ToastUI
+import FirebaseAnalytics
 
 fileprivate struct BuyProView: View {
     var onTryForFree: () -> Void
@@ -27,6 +28,12 @@ fileprivate struct BuyProView: View {
                 // 按钮动作
                 // 触发显示VIP付费界面的事件
                 onTryForFree()
+                
+                // 记录事件
+                Analytics.logEvent(globalAnalyticsEvents.eventEnterPurchase, parameters: [
+                    globalAnalyticsEvents.keyPurchaseEntry: globalAnalyticsEvents.valEntryBuyProBtn as NSObject,
+                    globalAnalyticsEvents.keyDeviceID: globalEnvironment.deviceID as NSObject
+                ])
             }
             .padding(.vertical, 6) // 调整高度为默认高度的2/3
             .padding(.horizontal, 20)