FEATURE: add option to send individual report PM to group members (#369)

This change adds an option to the Schedule a PM with Data Explorer results script, which when selected will send individual PMs to each group member selected in the Send to User, Group or Email field.

When this field is not checked, the functionality for groups will work as it did before (ie. send a single PM to the group).

plugin.rb

@@ -82,6 +82,7 @@ after_initialize do
         field :query_id, component: :choices, required: true, extra: { content: queries }
         field :query_params, component: :"key-value", accepts_placeholders: true
         field :skip_empty, component: :boolean
+        field :users_from_group, component: :boolean
         field :attach_csv,
               component: :boolean,
               validator: ->(attach_csv) do
@@ -103,6 +104,7 @@ after_initialize do
           query_id = fields.dig("query_id", "value")
           query_params = fields.dig("query_params", "value") || {}
           skip_empty = fields.dig("skip_empty", "value") || false
+          users_from_group = fields.dig("users_from_group", "value") || false
           attach_csv = fields.dig("attach_csv", "value") || false
 
           unless SiteSetting.data_explorer_enabled
@@ -120,7 +122,7 @@ after_initialize do
               query_id,
               query_params,
               recipients,
-              { skip_empty:, attach_csv:, render_url_columns: true },
+              { skip_empty:, users_from_group:, attach_csv:, render_url_columns: true },
             )
             .each do |pm|
               begin