clear the build warnings and fail on new ones

A clean build now emits no warnings of its own, and Kotlin
`allWarningsAsErrors` plus lint `warningsAsErrors` stop new ones from
sneaking back in.

- Kotlin: give SearchFilter's @StringRes parameter an explicit @param:
  target; use safe calls for File.parentFile in StringResourcesTest.
- Packaging: keep debug symbols for the prebuilt .so files that have no
  symbol table, which is what the "unable to strip" warning was about.
- Lint: move `modifier` to the first optional parameter across the Compose
  screens, use mutableIntStateOf for int state, read Resources via
  LocalResources, use the KTX Bitmap.get/String.toUri, drop the unused
  ic_action_name and ic_stat_name bitmaps and the dead -v24 qualifier on
  the notification vector, fix the pt-BR "album" accents and the unused
  Vietnamese/Thai plural quantities, and suppress the intentional
  cleartext/user-certificate, backup, exported-service and
  plural-candidate findings. Disable the version-update nags, which the
  dependency-update process owns.

The AboutLibraries plugin still resolves the variant classpaths during
configuration, so AGP keeps warning about that one; upstream in
mikepenz/AboutLibraries#1369.

app/src/test/kotlin/com/subtracks/i18n/StringResourcesTest.kt

@@ -34,17 +34,17 @@ class StringResourcesTest {
             val locale = parse(file)
             locale.forEach { (name, resource) ->
                 val base = default[name]
-                assertTrue("$name in ${file.parentFile.name} is missing from values/strings.xml", base != null)
-                assertEquals("$name kind differs in ${file.parentFile.name}", base!!.kind, resource.kind)
+                assertTrue("$name in ${file.parentFile?.name} is missing from values/strings.xml", base != null)
+                assertEquals("$name kind differs in ${file.parentFile?.name}", base!!.kind, resource.kind)
                 if (resource.kind == "plurals") {
                     assertTrue(
-                        "$name has an invalid quantity in ${file.parentFile.name}",
+                        "$name has an invalid quantity in ${file.parentFile?.name}",
                         resource.quantities.all { it in validQuantities },
                     )
-                    assertTrue("$name in ${file.parentFile.name} is missing the required 'other' quantity", "other" in resource.quantities)
+                    assertTrue("$name in ${file.parentFile?.name} is missing the required 'other' quantity", "other" in resource.quantities)
                 }
                 assertEquals(
-                    "$name placeholders differ in ${file.parentFile.name}",
+                    "$name placeholders differ in ${file.parentFile?.name}",
                     placeholders(base.text),
                     placeholders(resource.text),
                 )

app/src/test/kotlin/com/subtracks/ui/DemoScreenshotTest.kt

@@ -275,8 +275,8 @@ class DemoScreenshotTest {
     private fun DemoData.MiniPlayerOverlay(
         song: Song,
         album: Album,
-        progressInset: Boolean = false,
         modifier: Modifier = Modifier,
+        progressInset: Boolean = false,
     ) {
         MiniPlayer(
             state = playbackFor(song, album),