Enforce no grouping in currency formatter, to be consistent with MoneyFilter.

Fixes #13922
Resolves #13923

app/src/main/java/org/thoughtcrime/securesms/components/settings/app/subscription/boost/Boost.kt

@@ -291,6 +291,7 @@ data class Boost(
         }
 
         formatter.maximumFractionDigits = currency.defaultFractionDigits
+        formatter.isGroupingUsed = false
 
         val value = s.toString().toDoubleOrNull()
 

app/src/test/java/org/thoughtcrime/securesms/components/settings/app/subscription/boost/BoostTest__MoneyFilter.kt

@@ -109,7 +109,7 @@ class BoostTest__MoneyFilter {
 
     view.setText("1000", TextView.BufferType.EDITABLE)
 
-    assertEquals("$1,000", view.text.toString())
+    assertEquals("$1000", view.text.toString())
   }
 
   @Test