build(config): lower minSdk to 26 and update targetApi name

set minSdk from 29 to 26 to increase device compatibility.
replace numeric `tools:targetApi="33"` with the named constant `"tiramisu"` for clearer SDK version reference.

Author: BryceWG

app/build.gradle.kts

@@ -10,7 +10,7 @@ android {
 
     defaultConfig {
         applicationId = "com.brycewg.asrkb"
-        minSdk = 29
+        minSdk = 26
         targetSdk = 35
         versionCode = 146
         versionName = "3.13.3"

app/src/main/AndroidManifest.xml

@@ -41,7 +41,7 @@
         android:localeConfig="@xml/locale_config"
         android:theme="@style/Theme.ASRKeyboard"
         android:usesCleartextTraffic="true"
-        tools:targetApi="33">
+        tools:targetApi="tiramisu">
 
         <activity
             android:name=".ui.SettingsActivity"