Change max. thumbnail dimensions to 640x360px (360p) (#19619)

app/models/media_attachment.rb

@@ -72,7 +72,7 @@ class MediaAttachment < ApplicationRecord
     }.freeze,
 
     small: {
-      pixels: 160_000, # 400x400px
+      pixels: 230_400, # 640x360px
       file_geometry_parser: FastGeometryParser,
       blurhash: BLURHASH_OPTIONS,
     }.freeze,

spec/models/media_attachment_spec.rb

@@ -157,9 +157,9 @@ RSpec.describe MediaAttachment, type: :model do
       expect(media.file.meta["original"]["width"]).to eq 600
       expect(media.file.meta["original"]["height"]).to eq 400
       expect(media.file.meta["original"]["aspect"]).to eq 1.5
-      expect(media.file.meta["small"]["width"]).to eq 490
+      expect(media.file.meta["small"]["width"]).to eq 588
-      expect(media.file.meta["small"]["height"]).to eq 327
+      expect(media.file.meta["small"]["height"]).to eq 392
-      expect(media.file.meta["small"]["aspect"]).to eq 490.0 / 327
+      expect(media.file.meta["small"]["aspect"]).to eq 1.5
     end
 
     it 'gives the file a random name' do