✨ Feature: add remote file delete , picBed management

First version of PicList.
In album, you can delete remote file now.
Add picBed management
function.

src/main/manage/datastore/db.ts

@@ -0,0 +1,66 @@
+/* eslint-disable */
+import { JSONStore } from '@picgo/store'
+import { IJSON } from '@picgo/store/dist/types'
+import { ManageApiType, ManageConfigType } from '~/universal/types/manage'
+
+class ManageDB {
+  private readonly ctx: ManageApiType
+  private readonly db: JSONStore
+  constructor (ctx: ManageApiType) {
+    this.ctx = ctx
+    this.db = new JSONStore(this.ctx.configPath)
+    let initParams: IStringKeyMap = {
+      picBed: {},
+      settings: {},
+      currentPicBed: 'placeholder'
+    }
+    for (let key in initParams) {
+      if (!this.db.has(key)) {
+        try {
+          this.db.set(key, initParams[key])
+        } catch (e: any) {
+          this.ctx.logger.error(e)
+          throw e
+        }
+      }
+    }
+  }
+
+  read (flush?: boolean): IJSON {
+    return this.db.read(flush)
+  }
+
+  get (key: string = ''): any {
+    this.read(true)
+    return this.db.get(key)
+  }
+
+  set (key: string, value: any): void {
+    this.read(true)
+    return this.db.set(key, value)
+  }
+
+  has (key: string): boolean {
+    this.read(true)
+    return this.db.has(key)
+  }
+
+  unset (key: string, value: any): boolean {
+    this.read(true)
+    return this.db.unset(key, value)
+  }
+
+  saveConfig (config: Partial<ManageConfigType>): void {
+    Object.keys(config).forEach((name: string) => {
+      this.set(name, config[name])
+    })
+  }
+
+  removeConfig (config: ManageConfigType): void {
+    Object.keys(config).forEach((name: string) => {
+      this.unset(name, config[name])
+    })
+  }
+}
+
+export default ManageDB