feat: added beacon installer generation, download

sparse-server/style/beacons/_categories.scss

@@ -1,5 +1,6 @@
 main.beacons div.categories {
     padding: 10px;
+    overflow-y: scroll;
 
     fieldset {
         display: grid;

sparse-server/style/beacons/_configs.scss

@@ -1,5 +1,6 @@
 main.beacons div.config {
     padding: 10px;
+    overflow-y: scroll;
 
     fieldset {
         display: grid;

sparse-server/style/beacons/_listeners.scss

@@ -1,4 +1,6 @@
 main.beacons div.listeners {
+    overflow-y: scroll;
+
     form, p, h2 {
         margin: 10px;
     }

sparse-server/style/beacons/_templates.scss

@@ -1,5 +1,6 @@
 main.beacons div.templates {
     padding: 10px;
+    overflow-y: scroll;
 
     fieldset {
         display: grid;

sparse-server/style/main.scss

@@ -70,7 +70,11 @@ main {
 
 input[type="submit"],
 input[type="button"],
-button {
+button,
+a.button {
+	font-family: sans-serif;
+	font-size: 0.9rem;
+	color: black;
 	background-color: #fff;
 	border: 1px solid black;
 	cursor: pointer;
@@ -82,4 +86,13 @@ button {
 	&:hover {
 		background-color: #ccc;
 	}
+
+	&.warning {
+		background-color: #f00;
+		color: white;
+
+		&:hover {
+			background-color: #c00;
+		}
+	}
 }