Update dependencies

Update kotlin to 1.5.0 and the android gradle plugin to 4.2.0.

app/build.gradle

@@ -65,7 +65,7 @@ dependencies {
 
     // General
     implementation "androidx.core:core-ktx:1.3.2"
-    implementation "androidx.activity:activity-ktx:1.2.2"
+    implementation "androidx.activity:activity-ktx:1.2.3"
     implementation 'androidx.fragment:fragment-ktx:1.3.3'
 
     // UI
@@ -86,7 +86,7 @@ dependencies {
 
     // Media
     // TODO: Migrate to media2 when I can figure out how to use it
-    implementation "androidx.media:media:1.3.0"
+    implementation "androidx.media:media:1.3.1"
 
     // Preferences
     implementation "androidx.preference:preference-ktx:1.1.1"

app/src/main/java/org/oxycblt/auxio/songs/SongsFragment.kt

@@ -81,13 +81,13 @@ class SongsFragment : Fragment() {
         // If the name actually starts with "The" or "A", get the character *after* that word.
         // Yes, this is stupidly english centric but it wont run with other languages.
         if (length > 5 && startsWith("the ", true)) {
-            return get(4).toUpperCase()
+            return get(4).uppercaseChar()
         }
 
         if (length > 3 && startsWith("a ", true)) {
-            return get(2).toUpperCase()
+            return get(2).uppercaseChar()
         }
 
-        return get(0).toUpperCase()
+        return get(0).uppercaseChar()
     }
 }

app/src/main/java/org/oxycblt/auxio/ui/Accent.kt

@@ -9,7 +9,6 @@ import androidx.annotation.StringRes
 import androidx.annotation.StyleRes
 import androidx.core.text.HtmlCompat
 import org.oxycblt.auxio.R
-import java.util.Locale
 
 /**
  * A list of all possible accents.
@@ -55,7 +54,7 @@ data class Accent(@ColorRes val color: Int, @StyleRes val theme: Int, @StringRes
     @SuppressLint("ResourceType")
     fun getDetailedSummary(context: Context): Spanned {
         val name = context.getString(name)
-        val hex = context.getString(color).toUpperCase(Locale.getDefault())
+        val hex = context.getString(color).uppercase()
 
         return HtmlCompat.fromHtml(
             context.getString(R.string.format_accent_summary, name, hex),

build.gradle

@@ -1,6 +1,6 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 buildscript {
-    ext.kotlin_version = "1.4.32"
+    ext.kotlin_version = "1.5.0"
     ext.navigation_version = "2.3.5"
 
     repositories {
@@ -9,7 +9,7 @@ buildscript {
     }
 
     dependencies {
-        classpath "com.android.tools.build:gradle:4.1.3"
+        classpath 'com.android.tools.build:gradle:4.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$navigation_version"