Download db (#548)

* feat: contract-driven dynamic database download from API

* feat: persist download states across app relaunches

* fix: fix installed keyboards not showing in Settings

* feat: trigger download and "Downloading" state from Select Translation Source Language Screen

* redirect to Download Screen on confirming translation source change

* feat: set Update state for download button using data version endpoint

* fix download Toast display message

* Add new YAML based contract files

* Finalize form of YAML contracts

* Fix included double quote in en.yaml

* Update version of data contracts with necessary fields

* Minor fix in comment in contracts

* feat: change to using YAML for data contract

* remove json contracts

* fix minor typo

* Update German contract with missing displayValue fields for declensions

* Update contracts with fully indexed conjugations and declensions

* Fixes to DE data contract

* fix to fit new indexed contract

* feat: "All languages" download action

* feat: add empty state for download screen

* Misc fix of comment

---------

Co-authored-by: Andrew Tavis McAllister <andrew.t.mcallister@gmail.com>

Author: catreedle

app/build.gradle.kts

@@ -233,6 +233,13 @@ dependencies {
     // ==========================
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk7:2.1.21")
 
+    // ==========================
+    // API
+    // ==========================
+    implementation("com.squareup.retrofit2:retrofit:2.11.0")
+    implementation("com.squareup.retrofit2:converter-gson:2.11.0")
+    implementation("com.squareup.okhttp3:logging-interceptor:4.12.0")
+
     // ==========================
     // Layout and UI
     // ==========================
@@ -316,8 +323,9 @@ dependencies {
     api("com.google.code.gson:gson:2.13.1")
     api("com.github.bumptech.glide:glide:4.16.0")
     ksp("com.github.bumptech.glide:ksp:4.16.0")
-    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.8.1")
     implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.10.2")
+    implementation("com.charleskorn.kaml:kaml:0.57.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-collections-immutable:0.3.7")
 }
 
 tasks.register<Copy>("moveFromi18n") {

app/src/main/AndroidManifest.xml

@@ -9,6 +9,8 @@
     <uses-permission
         android:name="android.permission.WRITE_EXTERNAL_STORAGE"
         android:maxSdkVersion="28" />
+    <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
     <application
         android:allowBackup="true"