Fix typos and improve clarity in API documentation

[riderx]

Correct various typos and enhance the clarity of the API documentation to improve readability and understanding.

[vercel[bot]]

@riderx is attempting to deploy a commit to the Ionic Team on Vercel.

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[riderx]

i used typos rust CLI to find them and validate all manually. i made a PR to add this as check in every PR here: https://github.com/ionic-team/capacitor-docs/pull/481

[riderx]

@markemer this one is easier to review, I think as it's only text.