Use unknown when category is not set

Unstead of Misc, that could be a real category

scripts/i18n/create-custom-files.ts

@@ -90,7 +90,6 @@ Object.values(VIDEO_CATEGORIES)
 
 // More keys
 Object.assign(serverKeys, {
-  Misc: 'Misc',
   Unknown: 'Unknown'
 })
 

server/models/video/formatter/video-format-utils.ts

@@ -488,7 +488,7 @@ function videoModelToActivityPubObject (video: MVideoAP): VideoObject {
 }
 
 function getCategoryLabel (id: number) {
-  return VIDEO_CATEGORIES[id] || 'Misc'
+  return VIDEO_CATEGORIES[id] || 'Unknown'
 }
 
 function getLicenceLabel (id: number) {

server/tests/api/videos/video-imports.ts

@@ -41,7 +41,7 @@ async function checkVideosServer1 (server: PeerTubeServer, idHttp: string, idMag
   const videoTorrent = await server.videos.get({ id: idTorrent })
 
   for (const video of [ videoMagnet, videoTorrent ]) {
-    expect(video.category.label).to.equal('Misc')
+    expect(video.category.label).to.equal('Unknown')
     expect(video.licence.label).to.equal('Unknown')
     expect(video.language.label).to.equal('Unknown')
     expect(video.nsfw).to.be.false

server/tests/shared/videos.ts

@@ -59,7 +59,7 @@ async function completeVideoCheck (
 
   expect(video.name).to.equal(attributes.name)
   expect(video.category.id).to.equal(attributes.category)
-  expect(video.category.label).to.equal(attributes.category !== null ? VIDEO_CATEGORIES[attributes.category] : 'Misc')
+  expect(video.category.label).to.equal(attributes.category !== null ? VIDEO_CATEGORIES[attributes.category] : 'Unknown')
   expect(video.licence.id).to.equal(attributes.licence)
   expect(video.licence.label).to.equal(attributes.licence !== null ? VIDEO_LICENCES[attributes.licence] : 'Unknown')
   expect(video.language.id).to.equal(attributes.language)