Stop scrolling of progress bar after calculating spectral angle

[nbollis]

After calculating the spectral angle during a search task, the progress bar would scroll infinitely. This simple PR stops the scrolling after angle calculation is complete.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.81%. Comparing base (661b1e5) to head (c6ce889).

Additional details and impacted files

[](https://app.codecov.io/gh/smith-chem-wisc/MetaMorpheus/pull/2372?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smith-chem-wisc) ```diff @@ Coverage Diff @@ ## master #2372 +/- ## ======================================= Coverage 92.81% 92.81% ======================================= Files 137 137 Lines 21170 21171 +1 Branches 2924 2924 ======================================= + Hits 19649 19650 +1 Misses 1042 1042 Partials 479 479 ``` | [Files](https://app.codecov.io/gh/smith-chem-wisc/MetaMorpheus/pull/2372?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smith-chem-wisc) | Coverage Δ | | |---|---|---| | [MetaMorpheus/TaskLayer/SearchTask/SearchTask.cs](https://app.codecov.io/gh/smith-chem-wisc/MetaMorpheus/pull/2372?src=pr&el=tree&filepath=MetaMorpheus%2FTaskLayer%2FSearchTask%2FSearchTask.cs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=smith-chem-wisc#diff-TWV0YU1vcnBoZXVzL1Rhc2tMYXllci9TZWFyY2hUYXNrL1NlYXJjaFRhc2suY3M=) | `95.28% <100.00%> (+0.01%)` | :arrow_up: |