chore: ensure quality of Maps Builder Free v2.2.0

[kevinwhoffman]

User Story

As a developer, I want to ensure that Maps Builder v2.2.0 is tested so that we can have a smooth release.

Acceptance Criteria

@nishitlangaliya Refer to https://github.com/impress-org/give-square/issues/22 as an example when defining the acceptance criteria. Each new feature or fix in the v2.2.0 release report should be present in this list.

• Tooltips using hint.css work correctly for each field.
• Display 'Preview Map' link in list table and on click preview map in popup.
• Ensure Additional Admin Columns added as per suggestions in github.
• Ensure display existing marker's saved settings when editing.
• Ensure Esc key should not close model for 2nd-level.
• Ensure Repeatable toggles works fine as per github suggestions.
• Ensure Map Icons library needs to be updated.
• Ensure infobubble loads quickly and do not look leggy.