Refactor RichFormatting extension and HTML deserialization

What's Changed

• Reorganize extension ID constants by @e1himself in #205
• Refactor - Split RichFormatting extension by @e1himself in #206
• [MT-5018] Refactor - HTML deserialization by @e1himself in #208
• [MT-5018] Refactor - Html deserialization configuration & composition by @e1himself in #209
• [MT-5018] Refactor - Extract Slate content pasting logic into an extension by @e1himself in #210
• [MT-5018] Refactor - Simplify html parsing code by @e1himself in #212

Full Changelog: v0.40.8...v0.41.0

Content presentation improvements

What's Changed

• [MT-5004] Fix - Inter-blocks spacing by @e1himself in #200
• [MT-4989] Use different numeration style for nested lists by @e1himself in #201

Full Changelog: v0.40.5...v0.40.6

Fix gallery layout calculation bug

• Fix gallery layout calculation bug by @e1himself
  See prezly/linear-partition-js#3

Fix GIF images animation in the editor

• [MT-4999] Fix GIF images animation in the editor by @e1himself

Full Changelog: v0.40.3...v0.40.4

v0.40.3

Full Changelog: v0.40.2...v0.40.3

v0.40.2

Full Changelog: v0.40.1...v0.40.2

v0.40.1

Full Changelog: v0.40.0...v0.40.1

v0.40.0

What's Changed

• [MT-4987] Fix - Email editor WYSIWYG by @e1himself in #194
• Refactor - Extensions inline/void checks by @e1himself in #197
• [MT-4991] Fix - iframely embed selection by @e1himself in #196
• [MT-4990] Fix full-width block layout & selection styling by @e1himself in #195
• [MT-4984] Fix - Fallbacks for a non embeddable links by @e1himself in #199
• [DEV-5606] Fix - Erase blockquote/heading on backspace in the beginning of document by @e1himself in #198

Full Changelog: v0.39.2...v0.40.0

v0.39.2

What's Changed

• Refactor - LoadingPlaceholder by @e1himself in #187
• [MT-4333][DEV-4921] Fix - Gallery layout calculation by @e1himself in #188
• [MT-4985] Make attachment menu label discoverable by "File" keyword by @e1himself in #190
• Fix - Gallery layout calculation by @e1himself in #192
• [MT-4988] Fix - Unable to add link to text in story by @e1himself in #191
• Update uploads by @aspirisen in #193

Full Changelog: v0.39.1...v0.39.2

v0.39.1

What's Changed

• [MT-4930] Fix - Caret not visible in block menu inputs by @e1himself in #186

Full Changelog: v0.39.0...v0.39.1