Updating Seeding Input with new BannerComponent

[FutzMonitor]

Desired Design

Currently the Seeding Input form still makes use of the ErrorBannerComponent. However, the merging of #622 means that these instances need to be removed and the page adequately updated with new data variables to handle the newer BannerComponent.

It's also necessary to consider what new constants need to be added to the BannerMessageConstants.js specifically for the Seeding Input form.

Here are the necessary changes to complete this issue:

• Should the banner be closed by pressing an 'X' or should it be timeout based? Whatever is decided should be consistent in all pages,

1. Remove the ErrorBannerComponent from the page.
2. Import the BannerComponent into the page (simply add it to the Vue instance in the page).
3. Add the necessary data variables to support
4. Update pre-existing functions to make the BannerComponent visible, give the correct object, and handle visibility changes.
5. Remove the banner we're using under the Seeding Input's title. This can be found on lines #4 and ends on line #12.

[braughtg]

In addition, an appropriate spec.js file containing e2e tests for all uses of the BannerComponent in the page should be included in the PR.