fix(noun): fluent vowel handling

[noomorph]

Fixes declension issues in these nouns:

1. bȯz (m.)
2. diavȯl (m.anim.)
3. kȯl (m.)
4. låkȯť (m.)
5. lȯb (m.)
6. lȯž (f.)
7. mȯh (m.sg.)
8. nogȯť (m.)
9. ogȯnj (m.)
10. osȯt (m.)
11. posȯl (m.anim.)
12. sȯn (m.)
13. ščigȯl (m.anim.)
14. vihȯr (m.)
15. vųgȯl (m.)
16. vųgȯlj (m.sg.)
17. vȯš (f.)

Example of bad declension:

[coveralls]

Pull Request Test Coverage Report for Build 5364140851

• 43 of 43 (100.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.02%) to 94.518%

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Totals
Change from base Build 5252053877:	-0.02%
Covered Lines:	1489
Relevant Lines:	1572

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💛 - Coveralls

[github-actions[bot]]

:tada: This PR is included in version 2.2.1 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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