Display only valid emojis in recent emoji list (#5612)

* Create `:libraries:recentemojis` and move `AddRecentEmoji` and `GetRecentEmojis` there

- Make sure `GetRecentEmojis` won't return duplicate or invalid emojis.
- `ActionListPresenter` now handles merging suggested and recent emojis, not `ActionListView`.

libraries/recentemojis/api/build.gradle.kts

@@ -0,0 +1,26 @@
+import extension.setupDependencyInjection
+
+/*
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+plugins {
+    id("io.element.android-library")
+}
+
+android {
+    namespace = "io.element.android.libraries.recentemojis.api"
+}
+
+setupDependencyInjection()
+
+dependencies {
+    implementation(projects.libraries.architecture)
+    implementation(projects.libraries.matrix.api)
+
+    implementation(libs.kotlinx.collections.immutable)
+    implementation(libs.matrix.emojibase.bindings)
+}