For #16076 - Link data review for the share_image telemetry (#16534)

app/metrics.yaml

@@ -554,13 +554,15 @@ context_menu:
 
           ```
           open_in_new_tab, open_in_private_tab, open_image_in_new_tab,
-          save_image, share_link, copy_link, copy_image_location
+          save_image, share_link, copy_link, copy_image_location, share_image
           ```
     bugs:
       - https://github.com/mozilla-mobile/fenix/issues/957
+      - https://github.com/mozilla-mobile/fenix/issues/16076
     data_reviews:
       - https://github.com/mozilla-mobile/fenix/pull/1344#issuecomment-479285010
       - https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877
+      - https://github.com/mozilla-mobile/fenix/issues/16076#issuecomment-726216734
     data_sensitivity:
       - interaction
     notification_emails:

docs/metrics.md

@@ -80,7 +80,7 @@ The following metrics are added to the ping:
 | collections.tab_restored |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user restored a tab from collection tab list  |[1](https://github.com/mozilla-mobile/fenix/pull/3935), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)||2021-04-01 |1, 2 |
 | collections.tab_select_opened |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user opened the select tabs screen (the first step of the collection creation flow)  |[1](https://github.com/mozilla-mobile/fenix/pull/3935), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)||2021-04-01 |1, 2 |
 | collections.tabs_added |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user saved a list of tabs to an existing collection  |[1](https://github.com/mozilla-mobile/fenix/pull/3935), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)|<ul><li>tabs_open: The number of tabs open in the current session</li><li>tabs_selected: The number of tabs added to the collection</li></ul>|2021-04-01 |1, 2 |
-| context_menu.item_tapped |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user tapped an item in the browsers context menu  |[1](https://github.com/mozilla-mobile/fenix/pull/1344#issuecomment-479285010), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)|<ul><li>named: The name of the item that was tapped. Available items are:  ``` open_in_new_tab, open_in_private_tab, open_image_in_new_tab, save_image, share_link, copy_link, copy_image_location, share_image ``` </li></ul>|2021-04-01 |2 |
+| context_menu.item_tapped |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user tapped an item in the browsers context menu  |[1](https://github.com/mozilla-mobile/fenix/pull/1344#issuecomment-479285010), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877), [3](https://github.com/mozilla-mobile/fenix/issues/16076#issuecomment-726216734)|<ul><li>named: The name of the item that was tapped. Available items are:  ``` open_in_new_tab, open_in_private_tab, open_image_in_new_tab, save_image, share_link, copy_link, copy_image_location, share_image ``` </li></ul>|2021-04-01 |2 |
 | contextual_hint.tracking_protection.dismiss |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |The enhanced tracking protection contextual hint was dismissed by pressing the close button  |[1](https://github.com/mozilla-mobile/fenix/pull/11923), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)||2021-04-01 |2 |
 | contextual_hint.tracking_protection.display |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |The enhanced tracking protection contextual hint was displayed.  |[1](https://github.com/mozilla-mobile/fenix/pull/11923), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)||2021-04-01 |2 |
 | contextual_hint.tracking_protection.inside_tap |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |The user tapped inside of the etp contextual hint (which brings up the etp panel for this site).  |[1](https://github.com/mozilla-mobile/fenix/pull/11923), [2](https://github.com/mozilla-mobile/fenix/pull/13958#issuecomment-676857877)||2021-04-01 |2 |