Loading indicator, airplay button, iOS fullscreen, and fixes

• Add prettier pkg and yarn script (#131) 29d77bf
• Merge pull request #143 from luwes/fix-doc 07dfba2
• Merge pull request #142 from luwes/loading-indicator-fix 5f5ac3b
• Fix forward btn doc 28fe121
• Remove stalled event for loading indicator From @heff's comment #127 (comment) 3ffb62d
• Add loading indicator example and docs (#136) 44b7967
• Merge pull request #133 from cjpillsbury/feat/media-airplay-button 4645396
• improv/media-airplay-button: renaming and docs cleanup per PR feedback. 8a8a649
• feat/media-airplay-button: PR feedback changes. 820417a
• feat/media-airplay-button: Initial implementation of media-airplay-button (sans support & availability checks/styling). 298d449
• feat/loading-indicator (#127) abc07f6
• fix(playback-rate-button): update rates attr parsing (#129) e5cbf9d
• docs(playback-rate-button): correct attribute name to 'rates' (#128) 18e2026
• Merge pull request #120 from muxinc/ios-fullscreen 30deffc
• Add the examples link to readme (#111) 6c6d857
• Add architecture diagrams (#105) 4ab5172
• Fix ios fullscreen. Fixes #110 Closes #55 6cc4be5
• fix/update-youtube-media-element-version: Update our youtube example to use the latest version of youtube-video-element. (#114) d1608e0
• Fix type error in unset callback (#113) 9923617
• v0.4.2 (#112) c18e216
• fix/media-time-range-end: make sure media-time-range max aligns to current step precision. (#108) 0fa21c9
• Ignore sublime project files (#106) f782cde
• v0.4.1 (#107) 4d24ca9
• Merge pull request #104 from luwes/docs-tweaks dc636d4
• Fix docs grammar a98024c
• Improve readability c829230
• Add small fixes to docs bd0df68
• Add np dev dependency (#101) 1c62821
• Merge pull request #100 from luwes/fix-null-texttracks c5be737
• Fix .textTracks undefined error afec65a
• Appease the attribution gods c14de56
• fix/css-var-syntax: fixing nested vars syntax in media-chrome-range. 1ced863
• docs/per-element-docs: Add stubs for relevant elements/components. St… (#95) 041be75
• fix/custom-media-elements-timing: update mediaSetCallback to be entir… (#93) bc27ed3
• Improv/media chrome dot com (#92) 8149d4a
• Update to use type:module in package.json cf7f555

v0.4.0...v0.4.3