Sync svelte docs (#1612)

sync svelte docs

Co-authored-by: svelte-docs-bot[bot] <196124396+svelte-docs-bot[bot]@users.noreply.github.com>

Author: github-actions[bot]

apps/svelte.dev/content/docs/svelte/98-reference/.generated/shared-errors.md

@@ -60,6 +60,14 @@ Certain lifecycle methods can only be used during component initialisation. To f
 <button onclick={handleClick}>click me</button>
 ```
 
+### missing_context
+
+```
+Context was not set in a parent component
+```
+
+The [`createContext()`](svelte#createContext) utility returns a `[get, set]` pair of functions. `get` will throw an error if `set` was not used to set the context in a parent component.
+
 ### snippet_without_render_tag
 
 ```

apps/svelte.dev/content/docs/svelte/98-reference/20-svelte.md

@@ -12,6 +12,7 @@ import {
 	SvelteComponentTyped,
 	afterUpdate,
 	beforeUpdate,
+	createContext,
 	createEventDispatcher,
 	createRawSnippet,
 	flushSync,
@@ -221,6 +222,20 @@ function beforeUpdate(fn: () => void): void;
 
 
 
+## createContext
+
+Returns a `[get, set]` pair of functions for working with context in a type-safe way.
+
+<div class="ts-block">
+
+```dts
+function createContext<T>(): [() => T, (context: T) => T];
+```
+
+</div>
+
+
+
 ## createEventDispatcher
 
 <blockquote class="tag deprecated note">

apps/svelte.dev/content/docs/svelte/98-reference/30-runtime-errors.md

@@ -358,6 +358,14 @@ Certain lifecycle methods can only be used during component initialisation. To f
 <button onclick={handleClick}>click me</button>
 ```
 
+### missing_context
+
+```
+Context was not set in a parent component
+```
+
+The [`createContext()`](svelte#createContext) utility returns a `[get, set]` pair of functions. `get` will throw an error if `set` was not used to set the context in a parent component.
+
 ### snippet_without_render_tag
 
 ```