fix typo

main-command/src/main/scala/sbt/BasicKeys.scala

@@ -145,7 +145,7 @@ object BasicKeys {
   )
   private[sbt] val detachStdio = AttributeKey[Boolean](
     "detach-stdio",
-    "Toggles wheter or not to close system in, out and error when the server starts.",
+    "Toggles whether or not to close system in, out and error when the server starts.",
     1000
   )
 }

main-command/src/main/scala/sbt/internal/server/Server.scala

@@ -188,7 +188,7 @@ private[sbt] object Server {
         IO.write(tokenfile, CompactPrinter(jsonToken), IO.utf8, true)
       }
 
-      /** Set the persmission of the file such that the only the owner can read/write it. */
+      /** Set the permission of the file such that the only the owner can read/write it. */
       private[this] def ownerOnly(file: File): Unit = {
         def acl(owner: UserPrincipal) = {
           val builder = AclEntry.newBuilder

main-command/src/main/scala/sbt/internal/server/ServerHandler.scala

@@ -31,7 +31,7 @@ object ServerHandler {
   lazy val fallback: ServerHandler = ServerHandler({ handler =>
     ServerIntent(
       onRequest = { case x  => handler.log.debug(s"Unhandled request received: ${x.method}: $x") },
-      onResponse = { case x => handler.log.debug(s"Unhandled responce received") },
+      onResponse = { case x => handler.log.debug(s"Unhandled response received") },
       onNotification = {
         case x => handler.log.debug(s"Unhandled notification received: ${x.method}: $x")
       },