NRPT-619: implement admin component for LNG map updates

[mtCarto]

• NRPT-619

[marklise]

When hitting Save/Publish Map Updates and one of the required fields is missing information, the alert message comes up telling you to fill them out, but then a resolver is hit. The angular router should not be using the resolver in this scenario. The alert message should popup and when dismissed go right back to the form.

[marklise]

1. enter text in recent updates (leave length empty)
2. hit save
3. get alert telling you to fill out forms
4. dismiss the dialog
5. hit cancel map updates
6. navigate away
7. come back, your 'cancelled' changes are still there.

This is also likely due to the resolver being used in the previous comment.

[BcGovNeal]

Looks good! Only issue left is #799 has the same migration as this PR. It just depends on who merges first. The later merge should have the migration removed.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

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