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 {

src/preload.ts

@@ -52,7 +52,7 @@ const kittycad = (access: string, args: any) =>
 // bite our butts.
 const listMachines = async (): Promise<MachinesListing> => {
   const machineApi = await ipcRenderer.invoke('find_machine_api')
-  if (!machineApi) return []
+  if (!machineApi) return {}
 
   return fetch(`http://${machineApi}/machines`).then((resp) => resp.json())
 }