Apply suggestions from code review

Co-authored-by: Lukas Stracke <[email protected]>

Author: mydea

docs/platforms/javascript/common/apis.mdx

@@ -37,7 +37,7 @@ Sentry.setTag("tag", "value");
   signature="function setCurrentClient(client: Client): void"
 >
   Make the given client the current client. You do not need this if you use
-  `init()`, this is only necessary if you are manually setting up a client.˝
+  `init()`, this is only necessary if you are manually setting up a client.
 </SdkApi>
 
 <SdkApi
@@ -69,7 +69,7 @@ Sentry.setTag("tag", "value");
 
 <SdkApi
   name="close"
-  signature="function flush(timeout?: number): Promise<boolean>"
+  signature="function close(timeout?: number): Promise<boolean>"
   parameters={[
     {
       name: "timeout",
@@ -183,7 +183,7 @@ Note that in most cases you should not use this API, but instead use `withScope`
       name: "exception",
       required: true,
       type: "unknown",
-      description: "The exception to capture. This is usually an Error object.",
+      description: "The exception to capture. For best results, pass an `Error` object but it accepts any kind of value.",
     },
     {
       name: "captureContext",