Removes spurious references to apps from CRX docs

[awfuchs]

Fixes b/180055533.

Purged selected occurrences of "apps" that seem obsolete. Also removed offline_enabled page.

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[chrome-devrel-review-bot]

Hello! This is an automated review by our custom reviewbot. It updates automatically when code or GitHub comments in this pull request are created or updated.

Requested changes

If there are any common problems with the content files you created or modified, they will be listed here.

site/en/docs/extensions/mv3/declare_permissions/index.md

• Please break lines at 100 characters maximum. Long lines can be difficult to work with in GitHub's pull request UI. The following tools can help speed up the process: Rewrap (VS Code), Docs To X (Google Docs; only available for Googlers). Affected lines: 14, 62, 67, 70, 71, 75, 81, 85, 89, 103, 107, 111, 115, 119, 123, 128, 133, 138, 142, 147, 151, 155, 160, 165, 170, 174, 179, 183, 187, 191, 195, 200, 205, 209, 213, 218, 222, 226, 231, 235, 243, 247, 251, 255, 259, 263, 267, 271, 275, 279, 283, 287, 291, 295, 299, 303, 307, 311, 315, 319, 323, 328, 329, 330, 335, 339, 343, 347, 349, 350, 356, 360, 364, 368, 372

site/en/docs/extensions/mv3/devtools/index.md

• This file passed all of our automated Markdown audits.

site/en/docs/extensions/mv3/faq/index.md

• Please change your usage of the following words:
  • Avoid please. Affected lines: 240, 268

site/en/docs/extensions/mv3/manifest/incognito/index.md

• This file passed all of our automated Markdown audits.

site/en/docs/extensions/mv3/manifest/index.md

• Please break lines at 100 characters maximum. Long lines can be difficult to work with in GitHub's pull request UI. The following tools can help speed up the process: Rewrap (VS Code), Docs To X (Google Docs; only available for Googlers). Affected lines: 9, 21, 22, 23, 26, 27, 28, 29, 32, 33, 34, 35, 37, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77, 79, 80, 81, 82, 83, 84, 85, 86, 88, 89, 90, 91, 92

site/en/docs/extensions/mv3/manifest/requirements/index.md

• This file passed all of our automated Markdown audits.

site/en/docs/extensions/mv3/manifest/sandbox/index.md

• Please change your usage of the following words:
  • Avoid please. Affected lines: 10

site/en/docs/extensions/mv3/messaging/index.md

• Please change your usage of the following words:
  • Do not use master. Affected lines: 344

site/en/docs/extensions/mv3/permission_warnings/index.md

• Please break lines at 100 characters maximum. Long lines can be difficult to work with in GitHub's pull request UI. The following tools can help speed up the process: Rewrap (VS Code), Docs To X (Google Docs; only available for Googlers). Affected lines: 124, 202, 208, 214, 230, 231, 236, 246, 251, 256, 261, 267, 272, 277, 282, 287, 292, 297, 302, 307, 314, 315, 321, 326, 331

site/en/docs/extensions/mv3/richNotifications/index.md

• Please change your usage of the following words:
  • Do not use master. Affected lines: 184

site/en/docs/extensions/mv3/sandboxingEval/index.md

• Please change your usage of the following words:
  • Avoid please. Affected lines: 43, 51

site/en/docs/extensions/mv3/tut_analytics/index.md

• Please change your usage of the following words:
  • Avoid please. Affected lines: 17
  • Do not use master. Affected lines: 158

site/en/docs/extensions/mv3/xhr/index.md

• This file passed all of our automated Markdown audits.

[dotproto]

Nits asside, LGTM

[rdcronin]

Thanks, Andy!

[rdcronin]

LGTM % nits. Thanks, Andy!

[rdcronin]

nit: fix wrapping through here