[KYUUBI #1776][FOLLOWUP] Fill empty td tag for `Failure Reason` column in EngineTable

[wForget]

Why are the changes needed?

Followup #1776

'Failure Reason' column needs to be filled with empty td tag when there is no exception:

How was this patch tested?

• [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

• [X] Add screenshots for manual tests if appropriate

• [ ] Run test locally before make a pull request

[wForget]

cc @cfmcgrady

[codecov-commenter]

Codecov Report

Merging #3223 (a83d000) into master (6aa898e) will increase coverage by 0.07%. The diff coverage is 78.57%.

@@             Coverage Diff              @@
##             master    #3223      +/-   ##
============================================
+ Coverage     51.56%   51.63%   +0.07%     
  Complexity        6        6              
============================================
  Files           459      464       +5     
  Lines         25556    25652      +96     
  Branches       3545     3551       +6     
============================================
+ Hits          13177    13245      +68     
- Misses        11121    11141      +20     
- Partials       1258     1266       +8     

Impacted Files	Coverage Δ
...rc/main/scala/org/apache/spark/ui/EnginePage.scala	78.93% <50.00%> (+0.06%)	:arrow_up:
...rg/apache/kyuubi/events/EventHandlerRegister.scala	60.00% <60.00%> (ø)
...rg/apache/kyuubi/engine/spark/SparkSQLEngine.scala	76.87% <100.00%> (-0.01%)	:arrow_down:
...ngine/spark/events/SparkEventHandlerRegister.scala	100.00% <100.00%> (ø)
...che/kyuubi/events/ServerEventHandlerRegister.scala	100.00% <100.00%> (ø)
.../scala/org/apache/kyuubi/server/KyuubiServer.scala	53.84% <100.00%> (-4.60%)	:arrow_down:
...ain/scala/org/apache/kyuubi/engine/EngineRef.scala	74.07% <0.00%> (-2.12%)	:arrow_down:
...rg/apache/kyuubi/ctl/cmd/log/LogBatchCommand.scala	78.00% <0.00%> (-2.00%)	:arrow_down:
...pache/kyuubi/engine/YarnApplicationOperation.scala	64.81% <0.00%> (-1.86%)	:arrow_down:
...mon/src/main/scala/org/apache/kyuubi/Logging.scala	43.42% <0.00%> (-1.32%)	:arrow_down:
... and 11 more

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[pan3793]

Thanks, merging to master