Fixes

- Add a "Browse..." button to the plugin menu
- Remove the "Unload All" button from the plugin menu if there are no imported plugins to unload
- Add a new search filter: random:yes
- Resolution settings now affects the results screen assets
- Pixelate more assets with lowest resolution setting
- Fix loading error message not appearing sometimes
- Remove img.css from img assets, the background selectors have been moved to assets.js
- Separate the search logic from SongSelect to its own js file
- Load all image assets with crossorigin=anonymous, this could allow making assets low resolution or programatically taking screenshots at a later time
- If EditFunction in a plugin tries to edit something that is not a function, it will give a better error message
- Disallow search engine bots from indexing images and adding a translate link, which cannot load the game

public/assets/img/img.css

@@ -1,39 +0,0 @@
-.pattern-bg{
-	background-image: url("bg-pattern-1.png");
-}
-#song-select{
-	background-image: url("bg_genre_0.png");
-}
-#title-screen{
-	background-image: url("title-screen.png");
-}
-#loading-don{
-	background-image: url("dancing-don.gif");
-}
-#touch-full-btn{
-	background-image: url("touch_fullscreen.png");
-}
-#touch-pause-btn{
-	background-image: url("touch_pause.png");
-}
-.settings-outer{
-	background-image: url("bg_settings.png");
-}
-#gamepad-bg,
-#gamepad-buttons{
-	background-image: url("settings_gamepad.png");
-}
-#song-search{
-	background: linear-gradient(to top, rgb(245 246 252 / 8%), #ff5963), url("bg_search.png");
-	background-size: auto, 3.12em;
-	background-position: -1.2em;
-}
-.song-search-result-course::before{
-	background-image: url("difficulty.png");
-}
-.song-search-result-crown{
-	background-image: url("crown.png");
-}
-.song-search-tip-error{
-	background-image: url("miss.png");
-}