Change /srv/http/pages to /srv/http, don't automatically forward ports 4200-9

The first change doesn't require any manual intervention since /srv/http/pages is now symlinked to /srv/http. The purpose of it is just to make paths shorter, that's all.

I have several reasons for the second change, even though it may have been a useful feature:
- Security: Some programs use those ports by default and you don't want to accidentally expose them to the internet. If you want to run a program on exozyme and view it on your own computer, use SSH port forwarding instead.
- There was some weird DNS resolution problem with that config so I made it only listen to IPv4, which can cause problems since some programs only bind to IPv6.
- If you want to expose a program to the internet, you must use a Unix socket or socat. This feature was useful as a quick-and-dirty option, but socat is also just one command and doesn't require much more effort.

calibre-web.conf

@@ -4,7 +4,7 @@ server {
     server_name library.exozy.me;
 
     location / {
-        proxy_pass http://unix:/srv/http/pages/library;
+        proxy_pass http://unix:/srv/http/library;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

exozyme.conf

@@ -12,7 +12,7 @@ server {
     listen [::]:443 ssl default_server;
     server_name exozy.me;
 
-    root /srv/http/exozyme;
+    root /srv/http/www;
     index index.html;
 
     location /.well-known/matrix/server {

iacore.conf

@@ -7,7 +7,7 @@ server {
     ssl_certificate_key /etc/letsencrypt/live/www2.1a-insec.net/privkey.pem;
 
     location / {
-        proxy_pass http://unix:/srv/http/pages/xrablnhmov;
+        proxy_pass http://unix:/srv/http/xrablnhmov;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

nvpie.conf

@@ -7,7 +7,7 @@ server {
     ssl_certificate_key /etc/letsencrypt/live/neovoid.is-cool.dev/privkey.pem;
 
     location / {
-        proxy_pass http://unix:/srv/http/pages/nvpie;
+        proxy_pass http://unix:/srv/http/nvpie;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

pages.conf

@@ -1,31 +1,9 @@
-server {
-    listen 443 ssl;
-    listen [::]:443 ssl;
-    server_name ~^(\d)\.exozy\.me;
-
-    index index.html;
-
-    location / {
-        # https://serverfault.com/questions/638505/nginx-dynamic-proxy-pass-doesnt-resolve-properly
-        proxy_pass http://127.0.0.1:420$1;
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-
-        # Proxy WebSockets
-        proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection "Upgrade";
-    }
-}
-
 server {
     listen 443 ssl;
     listen [::]:443 ssl;
     server_name ~^(?<page>.+)\.exozy\.me;
 
-    root /srv/http/pages/$page;
+    root /srv/http/$page;
     index index.html;
 
     error_page 502 404 /404.html;
@@ -38,7 +16,7 @@ server {
     }
 
     location @fallback {
-        proxy_pass http://unix:/srv/http/pages/$page;
+        proxy_pass http://unix:/srv/http/$page;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

pranav.conf

@@ -7,7 +7,7 @@ server {
     ssl_certificate_key /home/pranav/.local/share/cert/karawale.in/key.pem;
 
     location / {
-        proxy_pass http://unix:/srv/http/pages/pranav;
+        proxy_pass http://unix:/srv/http/pranav;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

safetwitch.conf

@@ -3,7 +3,7 @@ server {
     listen [::]:443 ssl;
     server_name safetwitch.exozy.me;
 
-    root /srv/http/pages/safetwitch;
+    root /srv/http/safetwitch;
     index index.html;
 
     location / {

xtex.conf

@@ -9,7 +9,7 @@ server {
     add_header Server exozyme;
 
     location / {
-        proxy_pass http://unix:/srv/http/pages/xtexhome;
+        proxy_pass http://unix:/srv/http/xtexhome;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
@@ -33,7 +33,7 @@ server {
     add_header Server exozyme;
 
     location / {
-        proxy_pass http://unix:/srv/http/pages/xtexblog;
+        proxy_pass http://unix:/srv/http/xtexblog;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;