Update tensorboard links

[guarin]

Changes

• Replace links to tensorboard.dev with direct download of tensorboard logs

Closes https://github.com/lightly-ai/lightly/issues/1527

[codecov[bot]]

Codecov Report

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

Project coverage is 81.76%. Comparing base (be17ad2) to head (169ef07).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1532 +/- ## ======================================= Coverage 81.76% 81.76% ======================================= Files 144 144 Lines 6092 6092 ======================================= Hits 4981 4981 Misses 1111 1111 ```

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