Fix Typos in Comments and Function Names Across Multiple Files

[vtjl10]

Description:
This pull request corrects several typographical errors in comments and function names throughout the codebase. Specifically:

• Fixed the typo "proided" to "provided" in a comment in train_fabric.py.
• Corrected "prepar" to "prepare" in a comment in test_datamodules.py.
• Fixed the function name typo "accummulated" to "accumulated" in test_tensorboard.py.

These changes improve code readability and maintain consistency in documentation and naming. No functional code was altered.

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📚 Documentation preview 📚: https://pytorch-lightning--20901.org.readthedocs.build/en/20901/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81%. Comparing base (b6442c5) to head (1f9caa1).
Report is 6 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (b6442c5) and HEAD (1f9caa1). Click for more details.

HEAD has 825 uploads less than BASE

Flag	BASE (b6442c5)	HEAD (1f9caa1)
cpu	213	27
python	24	3
lightning_fabric	48	2
pytest	108	3
python3.10	48	6
python3.12.7	70	9
lightning	120	16
python3.11	48	6
python3.12	23	3
pytorch2.1	24	6
pytorch_lightning	48	12
pytest-full	108	27
pytorch2.2.2	12	3
pytorch2.3	12	3
pytorch2.5	12	3
pytorch2.5.1	12	3
pytorch2.4.1	12	3
pytorch2.7	12	3
pytorch2.6	12	3

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #20901     +/-   ##
=========================================
- Coverage      87%      81%     -6%     
=========================================
  Files         268      268             
  Lines       23442    23442             
=========================================
- Hits        20394    18965   -1429     
- Misses       3048     4477   +1429