Scraper and plugin manager (#4242)

* Add package manager
* Add SettingModal validate
* Reverse modal button order
* Add plugin package management
* Refactor ClearableInput

pkg/models/package.go

@@ -0,0 +1,12 @@
+package models
+
+type PackageSpecInput struct {
+	ID        string `json:"id"`
+	SourceURL string `json:"sourceURL"`
+}
+
+type PackageSource struct {
+	Name      *string `json:"name"`
+	LocalPath string  `json:"localPath"`
+	URL       string  `json:"url"`
+}