[v3-4-test] UI: Drop the loading spinner for base React plugins (#74762) - #74964

[v3-4-test] UI: Drop the loading spinner for base React plugins (#74762)#74964

vatsrahul1001 merged 1 commit into

v3-4-testapache/airflow:v3-4-testfrom

backport-6cf8332-v3-4-testapache/airflow:backport-6cf8332-v3-4-testCopy head branch name to clipboard