refactor: write route.query via settings.write

I added a shallow parameter, because the query should not be extends, but should be replaced directly.

src/node/settings.ts

@@ -2,6 +2,7 @@ import * as fs from "fs-extra"
 import * as path from "path"
 import { extend, paths } from "./util"
 import { logger } from "@coder/logger"
+import { Route } from "./http"
 
 export type Settings = { [key: string]: Settings | string | boolean | number }
 
@@ -31,9 +32,11 @@ export class SettingsProvider<T> {
    * Write settings combined with current settings. On failure log a warning.
    * Objects will be merged and everything else will be replaced.
    */
-  public async write(settings: Partial<T>): Promise<void> {
+  public async write(settings: Partial<T>, shallow?: boolean): Promise<void> {
     try {
-      await fs.writeFile(this.settingsPath, JSON.stringify(extend(await this.read(), settings), null, 2))
+      const oldSettings = await this.read()
+      const nextSettings = shallow ? Object.assign({}, oldSettings, settings) : extend(oldSettings, settings)
+      await fs.writeFile(this.settingsPath, JSON.stringify(nextSettings, null, 2))
     } catch (error) {
       logger.warn(error.message)
     }
@@ -55,6 +58,7 @@ export interface CoderSettings extends UpdateSettings {
     url: string
     workspace: boolean
   }
+  query: Route["query"]
 }
 
 /**