[lexical-table] Support for vertical cell writing

[ivailop7]

Resolves: #4437

vertical_writing.mov

Mechanics:
Chaging the CSS attribute writing-mode to 'vertical-rl' or 'vertical-lr' makes the text direction vertical. Once the text is vertical, most people would center it, to make this work seamlessly, we need to convert the text alignment 'left' to 'bottom', 'center' to 'middle', right to 'top', etc. and apply on TableCell-level. I've updated the FORMAT_ELEMENT_COMMAND in a separate PR (#6582) so we don't have the TableCell coupled to the paragraph within.

if no writing-mode is defined - assume the default horizontal, if writing-mode is present validate only 'vertical-rl' and 'vertical-lr' and ignore all the other deprecated properties as per https://developer.mozilla.org/en-US/docs/Web/CSS/writing-mode#values

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Name	Status	Preview	Comments	Updated (UTC)
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[github-actions]

size-limit report 📦

Path	Size
lexical - cjs	29.38 KB (0%)
lexical - esm	29.22 KB (0%)
@lexical/rich-text - cjs	37.87 KB (0%)
@lexical/rich-text - esm	31.08 KB (0%)
@lexical/plain-text - cjs	36.45 KB (0%)
@lexical/plain-text - esm	28.44 KB (0%)
@lexical/react - cjs	39.64 KB (0%)
@lexical/react - esm	32.52 KB (0%)