Implement favicon package

Credit to:
- https://stackoverflow.com/a/19590415/1816774
- https://realfavicongenerator.net/

core/admin/mailu/ui/templates/base.html

@@ -13,6 +13,13 @@
 
 {% block head %}
 {{super()}}
+<link rel="apple-touch-icon" sizes="180x180" href="/apple-touch-icon.png">
+<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
+<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
+<link rel="manifest" href="/site.webmanifest">
+<link rel="mask-icon" href="/safari-pinned-tab.svg" color="#5bbad5">
+<meta name="msapplication-TileColor" content="#00aba9">
+<meta name="theme-color" content="#ffffff">
 {% block scripts %}
 {{super()}}
 <script src="{{ url_for('.static', filename='select2/js/select2.min.js') }}"></script>

core/nginx/Dockerfile

@@ -10,6 +10,7 @@ RUN apk add --no-cache certbot nginx nginx-mod-mail openssl curl \
  && pip3 install idna requests watchdog
 
 COPY conf /conf
+COPY static /static
 COPY *.py /
 
 EXPOSE 80/tcp 443/tcp 110/tcp 143/tcp 465/tcp 587/tcp 993/tcp 995/tcp 25/tcp 10025/tcp 10143/tcp

core/nginx/conf/nginx.conf

@@ -38,6 +38,8 @@ http {
     {% if KUBERNETES_INGRESS != 'true' %}
     # Main HTTP server
     server {
+      # Favicon stuff
+      root /static;
       # Variables for proxifying
       set $admin {{ HOST_ADMIN }};
       set $antispam {{ HOST_ANTISPAM }};
@@ -90,9 +92,9 @@ http {
       {% if WEB_WEBMAIL != '/' %}
       location / {
       {% if WEBROOT_REDIRECT %}
-        return 301 {{ WEBROOT_REDIRECT }};
+        try_files $uri $uri/ {{ WEBROOT_REDIRECT }};
       {% else %}
-        return 404;
+        try_files $uri $uri/ =404;
       {% endif %}
       }
       {% endif %}

core/nginx/static/browserconfig.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<browserconfig>
+    <msapplication>
+        <tile>
+            <square150x150logo src="/mstile-150x150.png"/>
+            <TileColor>#00aba9</TileColor>
+        </tile>
+    </msapplication>
+</browserconfig>

core/nginx/static/safari-pinned-tab.svg

@@ -0,0 +1,25 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
+ "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
+<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
+ width="536.000000pt" height="536.000000pt" viewBox="0 0 536.000000 536.000000"
+ preserveAspectRatio="xMidYMid meet">
+<metadata>
+Created by potrace 1.11, written by Peter Selinger 2001-2013
+</metadata>
+<g transform="translate(0.000000,536.000000) scale(0.100000,-0.100000)"
+fill="#000000" stroke="none">
+<path d="M2508 5346 c-1 -2 -38 -6 -80 -10 -120 -10 -319 -44 -418 -71 -196
+-53 -336 -107 -526 -200 -128 -63 -346 -197 -419 -257 -11 -9 -54 -44 -95 -78
+-429 -353 -738 -840 -880 -1385 -16 -61 -24 -98 -45 -205 -3 -14 -8 -47 -11
+-75 -4 -27 -8 -53 -10 -56 -7 -13 -18 -230 -18 -354 2 -261 42 -536 109 -745
+8 -25 21 -65 29 -90 30 -96 100 -260 160 -376 255 -489 653 -889 1136 -1141
+103 -53 245 -118 285 -129 6 -1 35 -12 65 -24 48 -18 164 -54 210 -65 8 -2 45
+-10 81 -19 208 -48 333 -61 599 -61 176 0 328 8 384 20 12 2 35 6 51 9 293 45
+623 162 895 319 466 267 862 694 1082 1167 27 58 53 114 58 125 61 127 159
+484 176 640 3 28 7 55 9 62 8 25 19 242 18 353 -6 552 -175 1074 -495 1525
+-71 101 -82 114 -189 234 -255 286 -568 513 -924 669 -178 78 -422 152 -590
+178 -16 3 -41 7 -55 10 -14 2 -47 7 -75 10 -27 3 -61 8 -75 11 -28 5 -436 13
+-442 9z"/>
+</g>
+</svg>

core/nginx/static/site.webmanifest

@@ -0,0 +1,19 @@
+{
+    "name": "",
+    "short_name": "",
+    "icons": [
+        {
+            "src": "/android-chrome-192x192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "/android-chrome-512x512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ],
+    "theme_color": "#ffffff",
+    "background_color": "#ffffff",
+    "display": "standalone"
+}