Fix all CS violations

Fix violations:

FILE: .../video_embed_vine/src/Plugin/video_embed_field/Provider/Vine.php
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FOUND 2 ERRORS AFFECTING 2 LINES
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3 | ERROR | [x] Namespaced classes, interfaces and traits should
| | not begin with a file doc comment
12 | ERROR | [ ] Missing short description in doc comment
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PHPCBF CAN FIX THE 1 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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FILE: ...modules/video_embed_vine/tests/src/Unit/ProviderUrlParseTest.php
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FOUND 4 ERRORS AFFECTING 4 LINES
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3 | ERROR | [x] Namespaced classes, interfaces and traits should
| | not begin with a file doc comment
20 | ERROR | [ ] Missing short description in doc comment
54 | ERROR | [x] Expected 1 blank line after function; 0 found
55 | ERROR | [x] The closing brace for the class must have an empty
| | line before it
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PHPCBF CAN FIX THE 3 MARKED SNIFF VIOLATIONS AUTOMATICALLY
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Time: 253ms; Memory: 6Mb