Plugins: Unifying alpha state & options for all plugins (#16530)

* app pages

* app pages

* workign example

* started alpha support

* remove app stuff

* show warning on alpha/beta panels

* put app back on plugin file

* fix go

* add enum for PluginType and PluginIncludeType

* Refactoring and moving settings to plugins section

fixes #16529

pkg/setting/setting.go

@@ -142,9 +142,6 @@ var (
 	// Basic Auth
 	BasicAuthEnabled bool
 
-	// Plugin settings
-	PluginAppsSkipVerifyTLS bool
-
 	// Session settings.
 	SessionOptions         session.Options
 	SessionConnMaxLifetime int64
@@ -233,7 +230,8 @@ type Cfg struct {
 	MetricsEndpointEnabled           bool
 	MetricsEndpointBasicAuthUsername string
 	MetricsEndpointBasicAuthPassword string
-	EnableAlphaPanels                bool
+	PluginsEnableAlpha               bool
+	PluginsAppsSkipVerifyTLS         bool
 	DisableSanitizeHtml              bool
 	EnterpriseLicensePath            string
 
@@ -721,9 +719,6 @@ func (cfg *Cfg) Load(args *CommandLineArgs) error {
 	authBasic := iniFile.Section("auth.basic")
 	BasicAuthEnabled = authBasic.Key("enabled").MustBool(true)
 
-	// global plugin settings
-	PluginAppsSkipVerifyTLS = iniFile.Section("plugins").Key("app_tls_skip_verify_insecure").MustBool(false)
-
 	// Rendering
 	renderSec := iniFile.Section("rendering")
 	cfg.RendererUrl = renderSec.Key("server_url").String()
@@ -771,9 +766,17 @@ func (cfg *Cfg) Load(args *CommandLineArgs) error {
 	explore := iniFile.Section("explore")
 	ExploreEnabled = explore.Key("enabled").MustBool(true)
 
-	panels := iniFile.Section("panels")
-	cfg.EnableAlphaPanels = panels.Key("enable_alpha").MustBool(false)
-	cfg.DisableSanitizeHtml = panels.Key("disable_sanitize_html").MustBool(false)
+	panelsSection := iniFile.Section("panels")
+	cfg.DisableSanitizeHtml = panelsSection.Key("disable_sanitize_html").MustBool(false)
+
+	pluginsSection := iniFile.Section("plugins")
+	cfg.PluginsEnableAlpha = pluginsSection.Key("enable_alpha").MustBool(false)
+	cfg.PluginsAppsSkipVerifyTLS = iniFile.Section("plugins").Key("app_tls_skip_verify_insecure").MustBool(false)
+
+	// check old location for this option
+	if panelsSection.Key("enable_alpha").MustBool(false) {
+		cfg.PluginsEnableAlpha = true
+	}
 
 	cfg.readSessionConfig()
 	cfg.readSmtpSettings()