Improve the callback uri format and customization. (#4664)

* Remove unused SUPPORT_EMAIL_ADDRESS

* Improve the callback uri format and customization.

Use io.element.android for the scheme of Oidc redirection for Element X.
For nightly the scheme will be io.element.android.nightly
For debug the scheme will be  io.element.android.debug

Element Pro is using `io.element`

app/build.gradle.kts

@@ -106,14 +106,25 @@ android {
     logger.warnInBox("Building ${defaultConfig.applicationId} ($baseAppName)")
 
     buildTypes {
+        val oidcRedirectSchemeBase = BuildTimeConfig.METADATA_HOST_REVERSED ?: "io.element.android"
         getByName("debug") {
             resValue("string", "app_name", "$baseAppName dbg")
+            resValue(
+                "string",
+                "login_redirect_scheme",
+                "$oidcRedirectSchemeBase.debug",
+            )
             applicationIdSuffix = ".debug"
             signingConfig = signingConfigs.getByName("debug")
         }
 
         getByName("release") {
             resValue("string", "app_name", baseAppName)
+            resValue(
+                "string",
+                "login_redirect_scheme",
+                oidcRedirectSchemeBase,
+            )
             signingConfig = signingConfigs.getByName("debug")
 
             postprocessing {
@@ -131,6 +142,11 @@ android {
             applicationIdSuffix = ".nightly"
             versionNameSuffix = "-nightly"
             resValue("string", "app_name", "$baseAppName nightly")
+            resValue(
+                "string",
+                "login_redirect_scheme",
+                "$oidcRedirectSchemeBase.nightly",
+            )
             matchingFallbacks += listOf("release")
             signingConfig = signingConfigs.getByName("nightly")
 
@@ -284,6 +300,7 @@ dependencies {
     testImplementation(libs.test.truth)
     testImplementation(libs.test.turbine)
     testImplementation(projects.libraries.matrix.test)
+    testImplementation(projects.services.toolbox.test)
 
     koverDependencies()
 }