irmin-tezos-utils: Add an history (with buttons)

[clecat]

This PR adds an history of the watched entries to the graphical tool.

• The last 50 entries are saved in the history
• Each entry has a button to go back to them faster

[codecov-commenter]

Codecov Report

Merging #2195 (70b62e0) into main (56dab9e) will decrease coverage by 0.02%. The diff coverage is n/a.

:exclamation: Current head 70b62e0 differs from pull request most recent head c056a41. Consider uploading reports for the commit c056a41 to get more accurate results

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@@            Coverage Diff             @@
##             main    #2195      +/-   ##
==========================================
- Coverage   68.14%   68.12%   -0.02%     
==========================================
  Files         135      135              
  Lines       16255    16255              
==========================================
- Hits        11077    11074       -3     
- Misses       5178     5181       +3     

Impacted Files	Coverage Δ
src/irmin-fs/irmin_fs.ml	81.21% <0.00%> (-1.22%)	:arrow_down:
src/irmin-test/store.ml	94.89% <0.00%> (-0.06%)	:arrow_down:

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[art-w]

Thanks for the quick fix!

[clecat]

Just a quick note if it ever becomes relevant: The second commit name has nothing to do with control files, this was a mistake done when creating it (the joys of unseen copy and paste).