fix: Forward Uri read permission from LaunchActivity to NewTransferActivity

This will avoid the SecurityExceptions we're getting
upon importing files that takes place after
the LaunchActivity is destroyed following
our call to finish().

Author: LouisCAD

app/src/main/java/com/infomaniak/swisstransfer/ui/LaunchActivity.kt

@@ -88,7 +88,7 @@ class LaunchActivity : ComponentActivity() {
             setClass(this@LaunchActivity, NewTransferActivity::class.java)
             // We need NewMessageActivity to have its standard launchMode in the Manifest
             // in order for FLAG_ACTIVITY_CLEAR_TOP to kill and recreate NewMessageActivity
-            setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)
+            setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP or Intent.FLAG_GRANT_READ_URI_PERMISSION)
         }
     }