Add search bars for a user's videos and playlist library

...video-playlists/my-account-video-playlists.component.html

...video-playlists/my-account-video-playlists.component.scss

...t-video-playlists/my-account-video-playlists.component.ts

...ccount/my-account-videos/my-account-videos.component.html

...ccount/my-account-videos/my-account-videos.component.scss

...-account/my-account-videos/my-account-videos.component.ts

client/src/app/shared/users/user.service.ts

...hared/video-playlist/video-add-to-playlist.component.html

client/src/app/shared/video/abstract-video-list.ts

client/src/app/shared/video/video-miniature.component.scss

client/src/app/shared/video/video.service.ts

...videos/+video-watch/comment/video-comments.component.scss

client/src/sass/primeng-custom.scss

server/controllers/api/users/me.ts

server/models/video/video.ts