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.settailtitle.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; [setTailTitle](./bitburner.userinterface.settailtitle.md)
+
+## UserInterface.setTailTitle() method
+
+Set the title of the tail window of a script.
+
+**Signature:**
+
+```typescript
+setTailTitle(title: string | ReactNode, pid?: number): void;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  title | string \| [ReactNode](./bitburner.reactnode.md) | The new title for the tail window. |
+|  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
+
+This sets the title to the given string, and also forces an update of the tail window's contents.
+
+The title is saved across restarts, but only if it is a simple string.
+
+If the pid is unspecified, it will modify the current script’s logs.
+
+Otherwise, the pid argument can be used to change the logs from another script.
+
+It is possible to pass any React Node instead of a string. See [ReactElement](./bitburner.reactelement.md) and [ReactNode](./bitburner.reactnode.md) types for additional info.
+