chore: update applications list

[SethFalco]

Chores

• Converts all lists in this page to tables.
• Fixes various typos found in the document.

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Changes to the actual list

• Replaces Roku link for Playlet with one that doesn't require authentication to read.
• Removes Invidition, as the add-on's page literally instructs users to just use Privacy Redirect instead.
• Removes Alternate Tube Redirector, as this has not been maintained in years and was removed from the Mozilla add-on.
• Removes Kodi add-on (by TheAssassin) as this is no longer maintained, repo was archived, and search is broken.
• Renames Another Kodi add-on (by lekma) to just Kodi add-on as this is actively maintained and is far ahead in terms of features compared to the previous one.

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Preview here: https://github.com/SethFalco/documentation-1/blob/chore-apps/docs/applications.md

Ignore LibRedirect in the screenshots, I've removed that in the PR. [reference]