Cleanup the gradle build configuration

These changes resolve the inconsistency between gradle and scons targets by configuring the gradle buildtypes to match the scons targets.

platform/android/java/editor/build.gradle

@@ -21,7 +21,7 @@ android {
         //noinspection ExpiredTargetSdkVersion - Restrict to version 29 until https://github.com/godotengine/godot/pull/51815 is submitted
         targetSdkVersion 29 // versions.targetSdk
 
-        missingDimensionStrategy 'tools', 'toolsEnabled'
+        missingDimensionStrategy 'products', 'editor'
     }
 
     compileOptions {
@@ -30,13 +30,22 @@ android {
     }
 
     buildTypes {
-        debug {
-            applicationIdSuffix ".debug"
+        dev {
+            initWith debug
+            applicationIdSuffix ".dev"
         }
 
-        release_debug {
-            initWith debug
-            applicationIdSuffix ".releaseDebug"
+        debug {
+            initWith release
+
+            // Need to swap with the release signing config when this is ready for public release.
+            signingConfig signingConfigs.debug
+        }
+
+        release {
+            // This buildtype is disabled below.
+            // The editor can't be used with target=release only, as debugging tools are then not
+            // included, and it would crash on errors instead of reporting them.
         }
     }
 
@@ -47,9 +56,19 @@ android {
         }
     }
 
+    // Disable 'release' buildtype.
+    // The editor can't be used with target=release only, as debugging tools are then not
+    // included, and it would crash on errors instead of reporting them.
+    variantFilter { variant ->
+        if (variant.buildType.name == "release") {
+            setIgnore(true)
+        }
+    }
+
     applicationVariants.all { variant ->
         variant.outputs.all { output ->
-            output.outputFileName = "android_editor_${variant.name}.apk"
+            def suffix = variant.name == "dev" ? "_dev" : ""
+            output.outputFileName = "android_editor${suffix}.apk"
         }
     }
 }

platform/android/java/editor/src/debug/res/values/strings.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-	<string name="godot_editor_name_string">Godot Editor (debug)</string>
-</resources>

platform/android/java/editor/src/dev/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<string name="godot_editor_name_string">Godot Editor (dev)</string>
+</resources>

platform/android/java/editor/src/release_debug/res/values/strings.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-	<string name="godot_editor_name_string">Godot Editor (release-debug)</string>
-</resources>