feat: add ability to search and select icons from selfh.st (#1807)

backend/internal/controller/app_config_controller.go

@@ -79,10 +79,28 @@ func (acc *AppConfigController) listAppConfigHandler(c *gin.Context) error {
 		Value: strconv.FormatBool(tracing.FrontendTracingEnabled()),
 	})
 
+	// Manually add iconLibrary, derived from ICON_LIBRARY_URL, so the frontend can hide the icon picker and only credits selfh.st when its collection is used
+	configVariablesDto = append(configVariablesDto, dto.PublicAppConfigVariableDto{
+		Key:   "iconLibrary",
+		Value: iconLibraryStatus(),
+	})
+
 	c.JSON(http.StatusOK, configVariablesDto)
 	return nil
 }
 
+// iconLibraryStatus reports whether the icon library is disabled, uses the default selfh.st collection, or points to a custom source
+func iconLibraryStatus() string {
+	switch common.EnvConfig.IconLibraryURL {
+	case common.IconLibraryDisabled:
+		return "disabled"
+	case common.DefaultIconLibraryURL:
+		return "default"
+	default:
+		return "custom"
+	}
+}
+
 // listAllAppConfigHandler godoc
 // @Summary List all application configurations
 // @Description Get all application configurations including private ones