Separate @composables from state logic for actions editor

Author: Stypox

app/src/main/java/org/schabi/newpipe/ktx/Scope.kt

@@ -0,0 +1,12 @@
+package org.schabi.newpipe.ktx
+
+/**
+ * Especially useful to apply some Compose Modifiers only if some condition is met. E.g.
+ * ```kt
+ * Modifier
+ *     .padding(left = 4.dp)
+ *     .letIf(someCondition) { padding(right = 4.dp) }
+ * ```
+ */
+inline fun <T> T.letIf(condition: Boolean, block: T.() -> T): T =
+    if (condition) block(this) else this