docs: Fix a few typos

[timgates42]

There are small typos in:

• docs/installation.rst
• flask_appbuilder/filemanager.py
• flask_appbuilder/tests/test_api.py

Fixes:

• Should read without rather than wihout.
• Should read depends rather than dependes.
• Should read additional rather than aditional.

Semi-automated pull request generated by
https://github.com/timgates42/meticulous/blob/master/docs/NOTE.md

[dpgaspar]

Thank you!

[codecov]

Codecov Report

Merging #1929 (8858452) into master (328adb6) will decrease coverage by 6.60%.
The diff coverage is 47.36%.

@@            Coverage Diff             @@
##           master    #1929      +/-   ##
==========================================
- Coverage   77.74%   71.14%   -6.61%     
==========================================
  Files          70       62       -8     
  Lines        8560     7257    -1303     
==========================================
- Hits         6655     5163    -1492     
- Misses       1905     2094     +189     

Flag	Coverage Δ
python	71.14% <47.36%> (-6.61%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
flask_appbuilder/filemanager.py	25.16% <ø> (ø)
flask_appbuilder/security/views.py	62.22% <0.00%> (-0.35%)	⬇️
flask_appbuilder/models/mongoengine/fields.py	41.66% <33.33%> (-27.78%)	⬇️
flask_appbuilder/upload.py	32.67% <42.85%> (-3.97%)	⬇️
flask_appbuilder/baseviews.py	89.64% <100.00%> (+0.18%)	⬆️
flask_appbuilder/urltools.py	88.70% <100.00%> (-0.18%)	⬇️
flask_appbuilder/security/mongoengine/models.py	0.00% <0.00%> (-89.34%)	⬇️
flask_appbuilder/models/mongoengine/interface.py	0.00% <0.00%> (-77.50%)	⬇️
flask_appbuilder/models/mongoengine/filters.py	0.00% <0.00%> (-68.58%)	⬇️
flask_appbuilder/security/mongoengine/manager.py	0.00% <0.00%> (-66.16%)	⬇️
... and 13 more

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