API: Move tail-related APIs to another namespace (#1935)

* API: Move tail-related APIs to another namespace

* Add missing RAM cost config

* Remove setTailFontSize from NS namespace

markdown/bitburner.userinterface.closetail.md

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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [UserInterface](./bitburner.userinterface.md) &gt; [closeTail](./bitburner.userinterface.closetail.md)
+
+## UserInterface.closeTail() method
+
+Close the tail window of a script.
+
+**Signature:**
+
+```typescript
+closeTail(pid?: number): void;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  pid | number | _(Optional)_ Optional. PID of the script having its tail closed. If omitted, the current script is used. |
+
+**Returns:**
+
+void
+
+## Remarks
+
+RAM cost: 0 GB
+
+Closes a script’s logs. This is functionally the same as pressing the "Close" button on the tail window.
+
+If the function is called with no arguments, it will close the current script’s logs.
+
+Otherwise, the pid argument can be used to close the logs from another script.
+