Upgrade to v1.25.4

[woolfyx]

• 🎨 Added Koenig Demo Post (🎨 Added Koenig Demo Post TryGhost/Ghost#9747)
• 🐛 Fixed 1.25 migration for mobiledoc field being null (🐛Fixed 1.25 migration for mobiledoc field being null TryGhost/Ghost#9752)
• 🐛 Fixed 1.25 migration for html field being null

⚠️ PLEASE READ:

• The HTML output of Koenig beta posts has changed
• Themes will require updates to be compatible!
• See the themes changelog for specific changes in this version if your theme is already Koenig compatible
• See the Ghost 2.0 Theme Compatibility forum topic if your theme is not yet Koenig compatible

Updates to the Koenig editor beta (release announcement):

• ✨ Added rich-text support to captions
• ✨ Auto-convert URLs pasted on blank lines to embed cards
• ✨ Support /image {image url} slash menu shortcut
• 🐛 Fixed cards being lost on copy/paste if they immediate followed a list
• 🐛 Fixed duplicate images when dropping image file on an image card
• 🐛 Fixed error when dropping an image before the editor has focus
• 🎨 Hide sidebar when editing (🎨 Koenig - Hide sidebar when editing TryGhost/Admin#1030)
• 🐛 Fixed numpad Enter key not behaving like normal Enter key
• 🐛 Fixed missing alt text on images
  • alt text can be added to images when using markdown expansions to create an image card, eg: ![my alt text]()
• ✨ Added word count display
• ✨ Implement full set of text editing shortcuts
• 🎨 Allow Ctrl/Cmd+Enter to exit card edit mode
• 🐛 Fixed Firefox cursor getting stuck on cards when pressing Up
• 🐛 Fixed required double-click on (+) when cursor is not in same paragraph
• 🐛 Fixed Safari scrolling to bottom of post when using link input
• 🐛 Prevent double-clicks to enter markdown card edit mode triggering toolbar buttons

[woolfyx]

To upgrade from v1.24.9 to v1.25.4, need to upgrade the database with knex-migrator migrate.

• Post specific migration process on README.md

[woolfyx]

• Update the npm dependencies applicationinsights to v1.0.3
• Update the wiki with new npm version for applicationinsights

[woolfyx]

✔ Work on dev environment