While waiting for an update to the official documentation page, I created my own list of shortcuts. Then I thought I could share it as a wiki page, so y’all can contribute with entries that I may have missed.
EDIT: The documentation page has now been updated and improved, but I’ll keep this wiki page live. Time will tell which one becomes stale first! 
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Design View Only
DeleteorBackspace— Delete the currently selected component(s)Ctrl+Drag— Fine-grained control over column resizingCtrl+Dragwhile dragging a component — Allows finer control over the size or position of the component being moved or resizedDouble Clickon column separator of column panel — Reset column width, so the two columns have the same width
Code View Only, for the current file (module)
Ctrl+D— Delete current lineCtrl+F— Search the current file. Hit enter repeatedly to find subsequent matchesCtrl+G— Find next. Repeats previous searchCtrl+Shift+G— Find previous. Repeats previous search backwardsCtrl+Alt+G— Go to line numberCtrl+H— Replace occurrences of a particular string in the current file one by oneCtrl+Shift+H— Replace all occurrences of a particular string in the current fileCtrl+Q— Expand/collapse currently selected block of codeCtrl+/— Comment/uncomment a line or block of codeCtrl+Click+Function— Click on a (underlined) function to jump to its definitionCtrl+Click+Variable— Click on a (underlined) variable to jump to its definitionAlt+UporAlt+Down— Move the current or the selected lines up or downAlt+Shift+UporAlt+Shift+Down— Duplicate the current or the selected lines above or below
Linting and Formatting
F8— Jump to the next lint warning in the editorCtrl+I— Reindent the code to match your tabsize preferenceCtrl+Shift+M— Show all lint warnings in a bottom panelAlt+Shift+F— Format the module
Region folding
Ctrl+Shift+[— Fold current regionCtrl+Shift+]— Unold current regionCtrl+Alt+[— Fold all regions recursivelyCtrl+Alt+]— Unold all regions recursivelyCtrl+Alt+k,Ctrl+Alt+0— Fold All Code RecursivelyCtrl+Alt+k,Ctrl+Alt+1— Fold level 1Ctrl+Alt+k,Ctrl+Alt+2— Fold level 2Ctrl+Alt+k,Ctrl+Alt+3— Fold level 3Ctrl+Alt+k,Ctrl+Alt+4— Fold level 4Ctrl+Alt+k,Ctrl+Alt+5— Fold level 5Ctrl+Alt+k,Ctrl+Alt+6— Fold level 6Ctrl+Alt+k,Ctrl+Alt+[— Fold Region RecursivelyCtrl+Alt+k,Ctrl+Alt+]— Unfold Region RecursivelyCtrl+Alt+k,Ctrl+Alt+-— Fold All except selected regionCtrl+Alt+k,Ctrl+Alt+j— Unfold AllAlt-Click-Chevron— Fold/Unfold all other regions recursively. Child regions will fold or unfold to match their parent regionShift-Click-Chevron— Fold/Unfold clicked region recursively. Child regions will fold or unfold to match their parent region.
Selection management
Alt+Click— Add a new caret (preserving the current carets and selections)Alt+Drag— Add a new rectangular selection (preserving the current carets and selections)Alt+Shift+Drag— Create a rectangular selection (after resetting any other selection)
Data Table View Only
DeleteorBackspace— Delete the currently selected row(s) or column(s), or set the currently selected cell value toNoneUp,Down,Left,Right— Move between cellsEnter— Edit the currently selected cell, or move to the cell below if already editingTab— Move to the cell on the rightEscape— Clear the current selection
Other shortcuts
Ctrl+B— Open or close theApp BrowserpanelCtrl+C— Copy the currently selected component(s) or codeCtrl+Shift+F— Search all code in the appCtrl+P— Open theJump Towindow, with the (searchable!) list of available editorsAlt+PgUp— Goes to the previous editorAlt+PgDown— Goes to the next editorCtrl+V— Paste the cut/copied components or code into the selected container or at the cursorCtrl+X— Cut the currently selected component(s) or codeCtrl+YorCtrl+Shift+Z— Redo the latest reverted changeCtrl+Z— Undo the latest changeCtrl+Enter— Save and run the appShift+Clickon a file name on theApp Browserand on theJump Towindow — Open the file in a new browser windowCtrl+Clickon a file name on theApp Browserand on theJump Towindow — Open the file in a new browser tabAlt+Shift+ZorDouble Clickthe tab bar — Maximize the current tab and enter Zen mode