Dataup 213 clear errors from staging

[eamahanna]

Description of PR purpose/changes

This PR creates a clear all button when a file upload to the dropzone errors. The clear all button will remove all errored files from the dropzone when clicked. It will not remove files that are still uploading.

I talked to Mallory about the button positioning and she is fine with it's location given the scrolling functionality when there is more than a single errored file in the dropzone.

Jira Ticket / Issue

https://kbase-jira.atlassian.net/browse/DATAUP-213

• Added the Jira Ticket to the title of the PR e.g. (DATAUP-69 Adds a PR template)

Testing Instructions

• Details for how to test the PR:
  To execute the unit tests, navigate to the narrative repo and enter make test-frontend-unit

To view this change locally, complete the following steps:

• Pull this branch
• Execute `kbase-narrative'
• Create a new narrative
• Navigate to the data import panel
• Drag and drop a file that is greater than 20 GB into the dropzone. This should cause a file too large error.
• Repeat to get a group of files in the dropzone that have errored
• click the CLEAR ALL button
  This should clear the errored files from the drop zone.

Dev Checklist:

• My code follows the guidelines at https://sites.google.com/truss.works/kbasetruss/development
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules
• I have run Black and Flake8 on changed Python Code manually or with git precommit (and the travis build passes)

Updating Version and Release Notes (if applicable)

• Version has been bumped for each release
• Release notes have been updated for each release (and during the merge of feature branches)

[coveralls]

Coverage increased (+0.02%) to 16.983% when pulling dc7c41b on DATAUP-213-clear-errors-from-staging into a0b2820 on truss.

[leia-sefkin]

Only one comment/question on this, overall looks good. Checked it out locally and works like a charm.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!

0 Bugs
0 Vulnerabilities (and 0 Security Hotspots to review)
0 Code Smells

No Coverage information
0.0% Duplication