Hide download buttons for challenges a user isn’t involved with

#1538
#1539

Merge pull request #1536 from topcoder-platform/develop

v0.20.8

Merge pull request #1530 from topcoder-platform/PROD-4262

Redirect fix

Merge pull request #1526 from topcoder-platform/develop

Release 0.20.6

Merge pull request #1522 from topcoder-platform/release_0.20.5

Release 0.20.5

Merge pull request #1507 from topcoder-platform/develop

Markdown editing / download all submissions

Merge pull request #1494 from topcoder-platform/hotfix-pagination-issue

Filter challenges by logged in user

Merge branch 'master' into develop

Merge pull request #1452 from topcoder-platform/multiround

Multiround

Merge pull request #1423 from topcoder-platform/Oct_2022_Release

Oct 2022 release