Fix splashscreen WearOS icon (#732)

**Background**

Right now we not compain under Play Store review policy:
```
Their latest submission was rejected because the launcher icon does not match the splash screen icon, those 2 need to be exactly the same. See WO-V15 from https://developer.android.com/docs/quality-guidelines/wear-app-quality.
```

**Changes**

Use for splashscreen wearos app icon

**Test plan**

Try launch wearos app and check icon

.github/workflows/internal.yml

@@ -289,3 +289,4 @@ jobs:
           releaseFiles: ${{steps.download-wearos.outputs.download-path}}/flipper-zero-wearos.aab
           track: wear:production
           mappingFile: ${{steps.download-wearos.outputs.download-path}}/mapping-wearos.txt
+          changesNotSentForReview: true

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 # 1.6.7 - In progress
 
+- [FIX] Splashscreen WearOS icon
+
 # 1.6.6
 
 - [Feature] Bump deps

instances/app/src/main/AndroidManifest.xml

@@ -6,7 +6,7 @@
             android:allowBackup="true"
             android:fullBackupContent="false"
             android:icon="@mipmap/ic_launcher"
-            android:roundIcon="@mipmap/ic_launcher_round"
+            android:roundIcon="@mipmap/ic_launcher"
             android:label="@string/app_name"
             android:name="com.flipperdevices.app.FlipperApplication"
             android:supportsRtl="false"

instances/wearable/src/main/AndroidManifest.xml

@@ -9,7 +9,7 @@
             android:icon="@mipmap/ic_launcher"
             android:label="@string/app_name"
             android:name="com.flipperdevices.wearable.FlipperApplication"
-            android:roundIcon="@mipmap/ic_launcher_round"
+            android:roundIcon="@mipmap/ic_launcher"
             android:supportsRtl="true"
             android:theme="@style/FlipperTheme">
         <meta-data

instances/wearable/src/main/res/drawable/splash_screen.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <layer-list xmlns:android="http://schemas.android.com/apk/res/android">
     <item
-            android:drawable="@drawable/pic_splashscreen_dolphin"
+            android:drawable="@mipmap/ic_launcher"
             android:gravity="center"
             android:height="@dimen/splash_screen_icon_size"
             android:width="@dimen/splash_screen_icon_size" />

instances/wearable/src/main/res/values/styles.xml

@@ -11,6 +11,6 @@
         <!-- Set the theme of the Activity that follows your splash screen. -->
         <item name="postSplashScreenTheme">@style/FlipperTheme</item>
         <!-- Set a white background behind the splash screen icon. -->
-        <item name="windowSplashScreenIconBackgroundColor">@android:color/white</item>
+        <item name="windowSplashScreenIconBackgroundColor">@color/ic_launcher_background</item>
     </style>
 </resources>