Update API around brandColor.

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/InternalElementWellKnown.kt

@@ -27,4 +27,6 @@ data class InternalElementWellKnown(
     val enforceElementPro: Boolean? = null,
     @SerialName("rageshake_url")
     val rageshakeUrl: String? = null,
+    @SerialName("brand_color")
+    val brandColor: String? = null,
 )

libraries/wellknown/impl/src/main/kotlin/io/element/android/libraries/wellknown/impl/Mapper.kt

@@ -15,6 +15,7 @@ internal fun InternalElementWellKnown.map() = ElementWellKnown(
     registrationHelperUrl = registrationHelperUrl,
     enforceElementPro = enforceElementPro,
     rageshakeUrl = rageshakeUrl,
+    brandColor = brandColor,
 )
 
 internal fun InternalWellKnown.map() = WellKnown(

libraries/wellknown/impl/src/test/kotlin/io/element/android/libraries/wellknown/impl/DefaultSessionWellknownRetrieverTest.kt

@@ -161,6 +161,7 @@ class DefaultSessionWellknownRetrieverTest {
                 registrationHelperUrl = null,
                 enforceElementPro = null,
                 rageshakeUrl = null,
+                brandColor = null,
             )
         )
         getUrlLambda.assertions().isCalledOnce()
@@ -175,7 +176,8 @@ class DefaultSessionWellknownRetrieverTest {
                     """{
                     "registration_helper_url": "a_registration_url",
                     "enforce_element_pro": true,
-                    "rageshake_url": "a_rageshake_url"
+                    "rageshake_url": "a_rageshake_url",
+                    "brand_color": "#FF0000"
                 }""".trimIndent().toByteArray()
                 )
             }
@@ -185,6 +187,7 @@ class DefaultSessionWellknownRetrieverTest {
                 registrationHelperUrl = "a_registration_url",
                 enforceElementPro = true,
                 rageshakeUrl = "a_rageshake_url",
+                brandColor = "#FF0000",
             )
         )
     }
@@ -208,6 +211,7 @@ class DefaultSessionWellknownRetrieverTest {
                 registrationHelperUrl = "a_registration_url",
                 enforceElementPro = true,
                 rageshakeUrl = "a_rageshake_url",
+                brandColor = null,
             )
         )
     }