Consistency about whether "GMA Islands" is plural or not; widen columns on SIG list so it doesn't wrap

static/js/spotsbandsandmap.js

@@ -40,7 +40,7 @@ function setHamHFBandToggles() {
 
 // Generate SIGs filter card. This one is also a special case.
 function generateSIGsMultiToggleFilterCard(sig_options) {
-    const $grid = $('<div class="row row-cols-2 row-cols-xxl-3 g-1 mb-1">');
+    const $grid = $('<div class="row row-cols-2 g-1 mb-1">');
     sig_options.forEach(o => {
         const domSafeName = o["name"].replace(/^[^A-Za-z0-9]+|[^\w]+/gi, "");
         $grid.append(`<div class="col"><div class="form-check"><input type="checkbox" class="form-check-input filter-button-sig storeable-checkbox" id="filter-button-sig-${domSafeName}" value="${o['name']}" autocomplete="off" onClick="filtersUpdated()" checked><label class="form-check-label" id="filter-button-label-sig-${domSafeName}" for="filter-button-sig-${domSafeName}" title="${o['description']}"><i class="fa-solid ${sigToIcon(o['name'], 'fa-tower-cell')}"></i> ${o['name']}</label></div></div>`);

static/js/ui-ham.js

@@ -345,7 +345,7 @@ const SIG_ICONS = {
     "SOTA": "fa-mountain-sun",
     "WWFF": "fa-seedling",
     "GMA": "fa-person-hiking",
-    "GMA Island": "fa-person-hiking",
+    "GMA Islands": "fa-person-hiking",
     "WWBOTA": "fa-radiation",
     "HEMA": "fa-mound",
     "IOTA": "fa-book-atlas",
@@ -373,7 +373,7 @@ const SIG_NAMES = {
     "SOTA": "Summits on the Air",
     "WWFF": "Worldwide Flora & Fauna",
     "GMA": "Global Mountain Activity",
-    "GMA Island": "Global Mountain Activity - Islands",
+    "GMA Islands": "Global Mountain Activity - Islands",
     "WWBOTA": "Bunkers on the Air",
     "HEMA": "Humps Excluding Marilyns Award",
     "IOTA": "Islands on the Air",