feat(web): support long-press selection on mobile web (#16906)

* feat(web): max grid row height responsive

* also gallery-viewer

* lint

* feat(web): support long-press selection on mobile web

* use svelte-gestures

* fix test

* Bug fix

* globalThis

* format

* revert generator

* Testing

* bad merge

* Fix typo/tap on thumbnail

* feat: shrink header on small screens (#16909)

* feat(web): shrink header on small screens

* fix test

* test

* Fix test

* Revert user-page-layout chagne

* Restore icons sizes, make consistent, improve logo responsiveness

* remove 4 more pix, lint

* lint

* chore

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Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

* Revert "Testing"

This reverts commit 442f11c9e1.

---------

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

web/src/app.css

@@ -70,6 +70,7 @@
   font-family: 'Overpass', sans-serif;
   /* Used by layouts to ensure proper spacing between navbar and content */
   --navbar-height: calc(theme(spacing.18) + 4px);
+  --navbar-height-md: calc(theme(spacing.18) + 4px - 14px);
 }
 
 :root.dark {