Added characters limitation in trackersManagement.html

[KywoSkylake]

Added a characters limitation because I had the problem that one of our regex had more than 4000 chars and the entire table was messed up, this will fix it.

Only the first 256 characters will be showed until you click on the link than you can see the entire regex.

Thank you

[codecov-io]

Codecov Report

Merging #467 into master will decrease coverage by 0.04%. The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #467      +/-   ##
==========================================
- Coverage   11.99%   11.95%   -0.05%     
==========================================
  Files          74       74              
  Lines        7646     7672      +26     
==========================================
  Hits          917      917              
- Misses       6729     6755      +26

Impacted Files	Coverage Δ
bin/packages/Import_helper.py	85.18% <0%> (-1.86%)	:arrow_down:
bin/Global.py	0% <0%> (ø)	:arrow_up:
bin/NotificationHelper.py	0% <0%> (ø)	:arrow_up:
bin/Decoder.py	0% <0%> (ø)	:arrow_up:
bin/IPAddress.py	0% <0%> (ø)	:arrow_up:
bin/WebStats.py	0% <0%> (ø)	:arrow_up:
bin/BankAccount.py	0% <0%> (ø)	:arrow_up:
bin/SentimentAnalysis.py	0% <0%> (ø)	:arrow_up:
bin/packages/Item.py	45.83% <0%> (+0.04%)	:arrow_up:

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[Terrtia]

Hi @petmi627 ! Good catch, Thank you !