Revert "reflow machines from k/v" (#3575)

This reverts commit f77b312ecb.

src/lib/machineManager.ts

@@ -1,11 +1,13 @@
 import { isDesktop } from './isDesktop'
 import { components } from './machine-api'
 
-export type MachinesListing = Array<components['schemas']['Machine']>
+export type MachinesListing = {
+  [key: string]: components['schemas']['Machine']
+}
 
 export class MachineManager {
   private _isDesktop: boolean = isDesktop()
-  private _machines: MachinesListing = []
+  private _machines: MachinesListing = {}
   private _machineApiIp: string | null = null
   private _currentMachine: components['schemas']['Machine'] | null = null
 
@@ -42,7 +44,7 @@ export class MachineManager {
   }
 
   machineCount(): number {
-    return this._machines.length
+    return Object.keys(this._machines).length
   }
 
   get machineApiIp(): string | null {