feat: expand baseline profile with keyboard typing journey

BaselineProfileGenerator now exercises the full IME hot path:
enable IME, launch benchmark input activity, type two phrases
to trigger dictionary lookup, SymSpell, and suggestion strip
recomposition. ART's profile-guided compilation will now cover
FlorisImeService startup, KeyboardManager dispatch, NlpManager
suggest, and CandidatesRow rendering.

Also removes stale TODO about merging LanguagePackManagerScreen
with ThemeManagerScreen — the screens have diverged (CRUD lifecycle
vs pure selection) and no longer share enough to benefit from a
shared abstraction.

Author: SysAdminDoc

app/src/main/kotlin/dev/patrickgold/florisboard/app/settings/localization/LanguagePackManagerScreen.kt

@@ -73,7 +73,6 @@ enum class LanguagePackManagerScreenAction(val id: String) {
     MANAGE("manage-installed-language-packs");
 }
 
-// TODO: this file is based on ThemeManagerScreen.kt and can arguably be merged.
 @OptIn(ExperimentalJetPrefDatastoreUi::class)
 @Composable
 fun LanguagePackManagerScreen(action: LanguagePackManagerScreenAction?) = FlorisScreen {

benchmark/src/main/kotlin/dev/patrickgold/florisboard/benchmark/BaselineProfileGenerator.kt

@@ -31,10 +31,20 @@ class BaselineProfileGenerator {
     fun startup() =
         baselineProfileRule.collect(packageName = TargetPackageName) {
             pressHome()
-            // This block defines the app's critical user journey. Here we are interested in
-            // optimizing for app startup. But you can also navigate and scroll
-            // through your most important UI.
             startSettingsActivityAndWait()
             device.waitForIdle()
         }
+
+    @Test
+    fun keyboardTypingJourney() =
+        baselineProfileRule.collect(packageName = TargetPackageName) {
+            pressHome()
+            selectTargetIme()
+            startBenchmarkInputActivityAndWait()
+            device.waitForIdle(2_000)
+            device.executeShellCommand("input text 'hello world this is a test'")
+            device.waitForIdle(2_000)
+            device.executeShellCommand("input text ' the quick brown fox'")
+            device.waitForIdle(1_000)
+        }
 }