Update to iD v2.20.3

[tyrasd]

📰 News

• We maintain a running changelog now! Upcoming changes will be added to the Unreleased section of this changelog as soon as they are ready in the development version of the iD editor. (#8805)
• This version will be the last version which will run on Internet Explorer 11

🛡️ Security

• Fix missing escaping of external texts and content such as OSM user names, OSM tags, etc. which had opened a way to inject arbitrary HTML into the iD editor, potentially making XSS attacks possible. (#8813)

✨ Usability & Accessibility

• Add a preview to colour fields, showing a native colour picker dialog on click (#8782, thanks @k-yle)
• Tag keys of a multi-selection can now also be changed in the tags editor when the tag values differ in the selected features. (#8836)
• Improve screen reader accessibility (#8835, thanks @mbrzakovic)
• Render footways, cycleways, bridleways, paths and steps which are under construction (or proposed) thinner than generic roads under construction (#8743, thanks @k-yle)
• Only show accepted file types in custom data file chooser (#8676, thanks @jtracey)

✂️ Operations

• Split operation now indicates more clearly when multiple ways will be affected and gives a hint how to restrict the operation to a single line (#8818)
• Many operations now better preserve OSM object history (#8839, thanks @tpetillon)

📷 Street-Level

• Rename OpenStreetCam overlay to KartaView (#8807)

✅ Validation

• Allow disconnecting members of certain "grouping" types of relation (#8771)
• Clarify description of "disconnected way" validation rule (#8800)
• Fix data sources incorrectly flagged as proprietary data: esri/Google_Africa_building (#8844, thanks @Bonkles) and *amap (#8889, thanks @cicku)

🐛 Bugfixes

• Fix hidden tooltips on map control toolbar (#8781)
• Fix glitching out turn restriction minimap on narrow sidebars (#8792)
• Fix non-string properties of GeoJSON custom map data not being displayed correctly (#8825, thanks @k-yle)
• Fix a bug which made it impossible to switch to a custom TMS imagery layer after using a custom WMS source and vice versa (#8057)
• Fix a bug where the validator might show wrong tagging suggestions for a preset if another preset has a partial match (#8828, thanks @bhousel)
• Show correct vintage and other metadata for "Esri World Imagery"'s higher zoom levels
• Fix wrong order of route relation members after a split operation (#8519, thanks @tpetillon)
• Do not open disabled localized combobox when clicking on it (#8871, thanks @hodigabi)

🌏 Localization

• Deprecate t.html for providing localized texts, which is replaced by the new method t.append which directly and safely appends the localized strings to the DOM (#8817)

⌛ Performance

• Compare regexes as strings when checking imagery blocklists (#8860, thanks @bhousel)

🎓 Walkthrough / Help

• Show privacy settings in splash screen (i.e. the "Welcome to iD" message) (#8831)
• Fix broken labels in part of the walkthrough (#8906, thanks @hodigabi)

🚀 Presets

• Radio-button based presets fields can be in an non-unique state (e.g. a tunnel which is also a ford) – this is now rendered like a multi selection with conflicting states (#8796)
• Add colours for preset categories (#8799)
• Activate new access values (customers and unknown) introduced in id-tagging-schema v3.2 (#8876)
• Handle implied oneway=yes by seamark:type=separation_lane and seamark:type=separation_roundabout tags (#8880, thanks @k-yle)

🔨 Development

• Switch test runner to karma (#8764, thanks @wvanderp)
• Switch to chalk package for build scripts
• Upgrade to temaki library to v5 (#8434)