update some straggling references to the old package name

app/build.gradle

@@ -7,7 +7,7 @@ android {
 	compileSdk 32
 
 	defaultConfig {
-		applicationId "quest.faraday.tipcalculator"
+		applicationId "quest.faraday.tip_calculator"
 		minSdk 21
 		targetSdk 32
 		versionCode 1

app/src/androidTest/java/quest/faraday/tip_calculator/ExampleInstrumentedTest.kt

@@ -19,6 +19,6 @@ class ExampleInstrumentedTest {
 	fun useAppContext() {
 		// Context of the app under test.
 		val appContext = InstrumentationRegistry.getInstrumentation().targetContext
-		assertEquals("quest.faraday.tipcalculator", appContext.packageName)
+		assertEquals("quest.faraday.tip_calculator", appContext.packageName)
 	}
-}
+}