add missing stylesheets to geoadmin-demo app

This means we don't need to include lightbox CSS ourselves

apps/geoadmin-demo/project.json

@@ -19,7 +19,12 @@
           "apps/geoadmin-demo/src/favicon.ico",
           "apps/geoadmin-demo/src/assets"
         ],
-        "styles": ["apps/geoadmin-demo/src/styles.css"],
+        "styles": [
+          "apps/geoadmin-demo/src/styles.css",
+          "node_modules/basiclightbox/dist/basicLightbox.min.css",
+          "node_modules/tippy.js/dist/tippy.css",
+          "./node_modules/@angular/material/prebuilt-themes/indigo-pink.css"
+        ],
         "scripts": []
       },
       "configurations": {

apps/geoadmin-demo/src/styles.css

@@ -127,61 +127,3 @@ html {
 .close-btn:hover {
   background: #d32f2f;
 }
-
-.basicLightbox {
-  position: fixed;
-  display: flex;
-  justify-content: center;
-  align-items: center;
-  top: 0;
-  left: 0;
-  width: 100%;
-  height: 100vh;
-  background: rgba(0, 0, 0, 0.8);
-  opacity: 0.01;
-  transition: opacity 0.4s ease;
-  z-index: 1000;
-  will-change: opacity;
-}
-.basicLightbox--visible {
-  opacity: 1;
-}
-.basicLightbox__placeholder {
-  max-width: 100%;
-  transform: scale(0.9);
-  transition: transform 0.4s ease;
-  z-index: 1;
-  will-change: transform;
-}
-.basicLightbox__placeholder > iframe:first-child:last-child,
-.basicLightbox__placeholder > img:first-child:last-child,
-.basicLightbox__placeholder > video:first-child:last-child {
-  display: block;
-  position: absolute;
-  top: 0;
-  right: 0;
-  bottom: 0;
-  left: 0;
-  margin: auto;
-  max-width: 95%;
-  max-height: 95%;
-}
-.basicLightbox__placeholder > iframe:first-child:last-child,
-.basicLightbox__placeholder > video:first-child:last-child {
-  pointer-events: auto;
-}
-.basicLightbox__placeholder > img:first-child:last-child,
-.basicLightbox__placeholder > video:first-child:last-child {
-  width: auto;
-  height: auto;
-}
-.basicLightbox--iframe .basicLightbox__placeholder,
-.basicLightbox--img .basicLightbox__placeholder,
-.basicLightbox--video .basicLightbox__placeholder {
-  width: 100%;
-  height: 100%;
-  pointer-events: none;
-}
-.basicLightbox--visible .basicLightbox__placeholder {
-  transform: scale(1);
-}