* add loading to delete event dialog * chore: use mutation isLoading Signed-off-by: Udit Takkar <udit.07814802719@cse.mait.ac.in> --------- Signed-off-by: Udit Takkar <udit.07814802719@cse.mait.ac.in> Co-authored-by: Udit Takkar <udit.07814802719@cse.mait.ac.in>