feat(mobile): replace Sentry with Firebase Crashlytics

Migrate error tracking from Sentry to Firebase Crashlytics.
Bump version to 1.0.4, add Discord notification triggers.

apps/mobile/app.json

@@ -2,7 +2,7 @@
   "expo": {
     "name": "Sauci",
     "slug": "sauci",
-    "version": "1.0.3",
+    "version": "1.0.4",
     "orientation": "portrait",
     "icon": "./assets/icon.png",
     "scheme": "app.sauci",
@@ -16,10 +16,11 @@
     "ios": {
       "supportsTablet": false,
       "bundleIdentifier": "com.sauci.app",
-      "buildNumber": "33",
+      "buildNumber": "35",
       "usesAppleSignIn": true,
       "googleServicesFile": "./GoogleService-Info.plist",
       "infoPlist": {
+        "GOOGLE_ANALYTICS_INAPURCHASE_COLLECTION_ENABLED": false,
         "UIBackgroundModes": [
           "remote-notification"
         ],
@@ -177,7 +178,7 @@
         "backgroundColor": "#1a1a2e"
       },
       "package": "com.sauci.app",
-      "versionCode": 37,
+      "versionCode": 42,
       "googleServicesFile": "./google-services.json",
       "permissions": [
         "RECEIVE_BOOT_COMPLETED",
@@ -227,14 +228,7 @@
           "faceIDPermission": "Sauci uses Face ID to unlock the app and keep your conversations private."
         }
       ],
-      [
-        "@sentry/react-native/expo",
-        {
-          "organization": "molten-prints",
-          "project": "sauci"
-        }
-      ],
-      "@sentry/react-native",
+      "@react-native-firebase/crashlytics",
       "expo-font",
       "expo-asset",
       [