[SPARK-35509][DOCS] Move text data source options from Python and Scala into a single page

[itholic]

What changes were proposed in this pull request?

This PR proposes move text data source options from Python, Scala and Java into a single page.

Why are the changes needed?

So far, the documentation for text data source options is separated into different pages for each language API documents. However, this makes managing many options inconvenient, so it is efficient to manage all options in a single page and provide a link to that page in the API of each language.

Does this PR introduce any user-facing change?

Yes, the documents will be shown below after this change:

• "Text Files" page

• Python

• Scala

• Java

How was this patch tested?

Manually build docs and confirm the page.

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• This patch adds no public classes.

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[HyukjinKwon]

LGTM otherwise

[SparkQA]

Test build #138949 has finished for PR 32660 at commit 1ee72e2.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[SparkQA]

Test build #138952 has finished for PR 32660 at commit 98840f3.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

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[HyukjinKwon]

Merged to master.

[HyukjinKwon]

Sorry I missed it here. This is not in "the .option/.options methods of". Can you make the level down?

[itholic]

Sure. let me fix it in #32658

[SparkQA]

Test build #138965 has finished for PR 32660 at commit f03c03d.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.