web/about: convert pages to translatable markdown

web/i18n/en/about/general.md

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+<script lang="ts">
+    import { partners, contacts, docs } from "$lib/env";
+</script>
+
+<section id="saving">
+
+### best way to save what you love
+cobalt lets you save anything from your favorite websites: video, audio, photos or gifs — cobalt can do it all!
+
+no ads, trackers, or paywalls, no nonsense. just a convenient web app that works everywhere.
+
+</section>
+
+<section id="privacy">
+
+### leading privacy
+all requests to backend are anonymous and all tunnels are encrypted.
+we have a strict zero log policy and don't track *anything* about individual people.
+
+to avoid caching or storing downloaded files, cobalt processes them on-the-fly, sending processed pieces directly to client.
+this technology is used when your request needs additional processing, such as when source service stores video & audio in separate files.
+
+for even higher level of protection, you can [ask cobalt to always tunnel everything](/settings/privacy#tunnel).
+when enabled, cobalt will proxy everything through itself. no one will know what you download, even your network provider/admin.
+all they'll see is that you're using cobalt.
+
+</section>
+
+<section id="speed">
+
+### blazing speed
+since we don't rely on any existing downloaders and develop our own from ground up,
+cobalt is extremely efficient and a processing server can run on basically any hardware.
+
+main processing instances are hosted on several dedicated servers in several countries,
+to reduce latency and distribute the traffic.
+
+we constantly improve our infrastructure along with our long-standing partner, [royalehosting.net]({partners.royalehosting})!
+you're in good hands, and will get what you need within seconds.
+
+</section>
+<section id="community">
+
+### open community
+cobalt is used by countless artists, educators, and content creators to do what they love.
+we're always on the line with our community and work together to create even more useful tools for them.
+feel free to [join the conversation](/about/community)!
+
+we believe that the future of the internet is open, which is why cobalt is [source first](https://sourcefirst.com/) and [easily self-hostable]({docs.instanceHosting}). you can [check the source code & contribute to cobalt]({contacts.github})
+at any time, we welcome all contributions and suggestions.
+
+you can use any processing instances hosted by the community, including your own.
+if your friend hosts one, just ask them for a domain and [add it in instance settings](/settings/instances#community).
+
+</section>
+<section id="local">
+
+### on-device processing
+new features, such as [remuxing](/remux), work on-device.
+on-device processing is efficient and never sends anything over the internet.
+it perfectly aligns with our future goal of moving as much processing as possible to client.
+
+</section>