feat(embedded): Disable share clickable links for chart and tab title if can_export permission is missing

[cezudas]

SUMMARY

While in embedded mode, one could argue that sharing should be disabled since the links do not work in embed mode and clicking them will redirect a GUEST_USER to the standalone version of superset and will hit a "login wall".
Such a share link is http://localhost:8088/superset/dashboard/p/4aRGDe0MLmo/. See the screenshot below.

In my experience it is enough to:

• ensure the role used as GUEST_ROLE_NAME lacks the following permissions

{
    "permission": { "name": "can_export" },
    "view_menu": { "name": "Dashboard" }
},
{
    "permission": { "name": "can_export" },
    "view_menu": { "name": "Chart" }
}

• conditionally render the share links for Tab title and Chart title based on the permissions listed above

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before:
Clickable links

TESTING INSTRUCTIONS

I used a user WITHOUT the following permissions

{
    "permission": { "name": "can_export" },
    "view_menu": { "name": "Dashboard" }
},
{
    "permission": { "name": "can_export" },
    "view_menu": { "name": "Chart" }
}

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags:
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API