add keyboards and update tgbotapi up to 0.38.12

KeyboardsBot/KeyboardsBotLib/src/jsMain/kotlin/KeyboardsBot.kt

@@ -0,0 +1,32 @@
+import kotlinx.browser.document
+import kotlinx.coroutines.*
+import org.w3c.dom.*
+
+private val scope = CoroutineScope(Dispatchers.Default)
+
+fun main() {
+    document.addEventListener(
+        "DOMContentLoaded",
+        {
+            val botsContainer = document.getElementById("bots_container") ?: return@addEventListener
+
+            (document.getElementById("bot_token_form") as? HTMLFormElement) ?.onsubmit = {
+                (document.getElementById("bot_token") as? HTMLInputElement) ?.value ?.let { token ->
+                    val botContainer = document.createElement("div") as HTMLDivElement
+                    botsContainer.append(botContainer)
+
+                    val infoDiv = document.createElement("div") as HTMLDivElement
+                    botContainer.append(infoDiv)
+
+                    scope.launch {
+                        activateKeyboardsBot(token) {
+                            infoDiv.innerHTML = it.toString()
+                        }
+                    }
+                }
+
+                false
+            }
+        }
+    )
+}