actionslider, app, bg: Fix and clean up doxygen documentation.

legacy/elementary/src/lib/elm_actionslider_common.h

@@ -1,7 +1,11 @@
+/**
+ * @addtogroup Actionslider
+ *
+ * @{
+ */
+
 /**
  * A position for indicators, magnets, and enabled items.
- *
- * @ingroup Actionslider
  */
 typedef enum
 {
@@ -11,3 +15,7 @@ typedef enum
    ELM_ACTIONSLIDER_RIGHT = 1 << 2, /**< right position */
    ELM_ACTIONSLIDER_ALL = (1 << 3) - 1 /**< all positions for left/center/right */
 } Elm_Actionslider_Pos;
+
+/**
+ * @}
+ */

legacy/elementary/src/lib/elm_app_common.h

@@ -1,3 +1,12 @@
+/**
+ * @addtogroup App
+ *
+ * @{
+ */
+
+/**
+ * Elm_App_View_State
+ */
 typedef enum
 {
    ELM_APP_VIEW_STATE_UNKNOWN = 0,
@@ -7,6 +16,10 @@ typedef enum
    ELM_APP_VIEW_STATE_SHALLOW
 } Elm_App_View_State;
 
+/**
+ * @}
+ */
+
 char *_dbus_package_to_path(const char *package);
 
 Elm_App_View_State _string_state_to_id(const char *state);

legacy/elementary/src/lib/elm_bg_common.h

@@ -1,11 +1,15 @@
+/**
+ * @addtogroup Bg
+ *
+ * @{
+ */
+
 /**
  * Identifiers on how a background widget is to display its image --
  * if it was set to use an image file.
  *
  * @see elm_bg_option_set()
  * @see elm_bg_option_get()
- *
- * @ingroup Bg
  */
 typedef enum
 {
@@ -16,3 +20,7 @@ typedef enum
    ELM_BG_OPTION_LAST /**< sentinel value, also used to indicate errors */
 } Elm_Bg_Option;
 
+
+/**
+ * @}
+ */