Improvements related to albums:
* Changed "rename album" option with a better "edit album" feature. With it you can also disable download or public link and even request a new public link (https://i.fiery.me/fz1y.png).
This also adds a new API route: /api/albums/edit.
The old API route, /api/albums/rename, is still available but will silently be using the new API in backend.
* Deleting album will now also delete its zip archive if exists.
* Renaming albums will also rename its zip archive if exists.
* Generating zip will use async fs.readFile instead of fs.readFileSync. This should improve generating speed somewhat.
* The codes that tries to generate random identifier for album will now check whether an album with the same identifier already exists. It will also rely on "uploads.maxTries" config option to limit how many times it will try to re-generate a new random identifier.
* Added a new config option "uploads.albumIdentifierLength" which sets the length of the randomly generated identifier.
* Added "download" and "public" columns to "albums" table in database/db.js.
Existing users can run "node database/migration.js" to add the columns.
Others:
* uploadsController.getUniqueRandomName will no longer accept 3 paramters (previously it would accept a callback in the third parameter). It will now instead return a Promise.
* Album name of disabled/deleted albums will no longer be shown in uploads list.
* Added "fileLength" column to "users" table in database/db.js.
* Renamed HTTP404.html and HTTP500.html in /pages/error to 404.html and 500.html respectively. I'm still using symlinks though.
* Added a new CSS named sweetalert.css which will be used in homepage, auth and dashboard. It will style all sweetalert modals with dark theme (matching the current color scheme used in this branch).
* Updated icons (added download icon).
* Some other improvements/tweaks here and there.
* Updated screenshot in README.md, as well as replaced fb_share.png with the same image.
* Removed 512px.png and replaced it with 512pxr.png (a round version) in manifest.json.
* globals.v is now split into globals.v1 and globals.v2. The former for CSS and JS files, the latter for images and config files (manifest.json, etcetera).
* All static images that are part of the layout will now have their URLs appended with globals.v2 (which means this does not include dynamically generated images such as thumbnails of uploaded files).
* Added "short_name" to manifest.json.
* Added 512px icon to manifest.json.
* Increased brightness of links to satisfy WCAG 2 AA standard.
* Added 'rel="noopener"' to all instances of a[target="_blank"].
* Added 'alt' to all instances of img.
* Updated static files' version string yet again.
* Added 'lang="en"' to html (_layout.njk).
* You can now disable using icons in home's footer links by setting "home_icons" to false in _globals.njk.
* Renamed "meta" block to "opengraph" in _layout.njk, since the block only represents opengraph tags anyways.
* Moved noscript warning to its own file at views/_partial/noscript.njk. It's also now being included in dashboard and auth pages.
* No-JS uploader will no longer use icons in its footer links. It will also no longer load fontello.css.
* Updated static files' version string in _globals.njk.
* Some other tweaks, mainly to get no-icons mode to work properly.
* Main upload button will no longer be "loading" if an error occurs with the API check request.
* It will now show a message asking user to try out the No-JS uploader when JavaScript is disabled.
* Moved links.njk to _partial/links.njk.
* Renamed layout.njk to _layout.njk.
* Cleaned some formatting in links.njk and nojs.njk (mainly had something to do with extraneous whitespaces).
Thanks to Zephyrrus for the hints about nunjucks, sort of (he did not really give out any specific hints to me, I stalked his fork, lmao).
* Replaced Handlebars with Nunjucks.
* Replaced all static HTML files with their NJK-equivalent (excluding error pages).
* Renamed "albumDomain" to "homeDomain" in config.sample.js (make sure you update your config.js too).
* Updated dependencies: knex and eslint-plugin-import (dev).
* Updated vscode's settings.json (I may update this again very soon).
