added icons attributions

Author: stefanosiano

sentry-android-core/src/main/res/drawable/sentry_user_feedback_button_logo_24.xml

@@ -1,3 +1,4 @@
+<!-- Taken from https://cs.android.com/android-studio/platform/tools/adt/idea/+/mirror-goog-studio-main:android/resources/images/material/icons/materialicons/campaign/baseline_campaign_24.xml -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="?android:attr/colorForeground" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
 
     <path android:fillColor="?android:attr/colorForeground" android:pathData="M18,11v2h4v-2h-4zM16,17.61c0.96,0.71 2.21,1.65 3.2,2.39 0.4,-0.53 0.8,-1.07 1.2,-1.6 -0.99,-0.74 -2.24,-1.68 -3.2,-2.4 -0.4,0.54 -0.8,1.08 -1.2,1.61zM20.4,5.6c-0.4,-0.53 -0.8,-1.07 -1.2,-1.6 -0.99,0.74 -2.24,1.68 -3.2,2.4 0.4,0.53 0.8,1.07 1.2,1.6 0.96,-0.72 2.21,-1.65 3.2,-2.4zM4,9c-1.1,0 -2,0.9 -2,2v2c0,1.1 0.9,2 2,2h1v4h2v-4h1l5,3L13,6L8,9L4,9zM15.5,12c0,-1.33 -0.58,-2.53 -1.5,-3.35v6.69c0.92,-0.81 1.5,-2.01 1.5,-3.34z"/>

sentry-compose/src/androidMain/res/drawable/sentry_user_feedback_compose_button_logo_24.xml

@@ -1,3 +1,4 @@
+<!-- Taken from https://cs.android.com/android-studio/platform/tools/adt/idea/+/mirror-goog-studio-main:android/resources/images/material/icons/materialicons/campaign/baseline_campaign_24.xml -->
 <vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
 
     <path android:fillColor="?android:attr/colorForeground" android:pathData="M18,11v2h4v-2h-4zM16,17.61c0.96,0.71 2.21,1.65 3.2,2.39 0.4,-0.53 0.8,-1.07 1.2,-1.6 -0.99,-0.74 -2.24,-1.68 -3.2,-2.4 -0.4,0.54 -0.8,1.08 -1.2,1.61zM20.4,5.6c-0.4,-0.53 -0.8,-1.07 -1.2,-1.6 -0.99,0.74 -2.24,1.68 -3.2,2.4 0.4,0.53 0.8,1.07 1.2,1.6 0.96,-0.72 2.21,-1.65 3.2,-2.4zM4,9c-1.1,0 -2,0.9 -2,2v2c0,1.1 0.9,2 2,2h1v4h2v-4h1l5,3L13,6L8,9L4,9zM15.5,12c0,-1.33 -0.58,-2.53 -1.5,-3.35v6.69c0.92,-0.81 1.5,-2.01 1.5,-3.34z"/>