Add page width customizability

internal/assets/static/main.css

@@ -428,6 +428,14 @@ kbd:active {
     padding: 0 var(--content-bounds-padding);
 }
 
+.page-width-wide .content-bounds {
+    max-width: 1920px;
+}
+
+.page-width-slim .content-bounds {
+    max-width: 1100px;
+}
+
 .dynamic-columns {
     gap: calc(var(--widget-content-vertical-padding) / 2);
     display: grid;

internal/assets/templates/page.html

@@ -10,7 +10,7 @@
 </script>
 {{ end }}
 
-{{ define "document-root-attrs" }}{{ if .App.Config.Theme.Light }}class="light-scheme"{{ end }}{{ end }}
+{{ define "document-root-attrs" }}class="{{ if .App.Config.Theme.Light }}light-scheme {{ end }}{{ if ne "" .Page.Width }}page-width-{{ .Page.Width }}{{ end }}"{{ end }}
 {{ define "document-head-after" }}
 {{ template "page-style-overrides.gotmpl" . }}
 {{ if ne "" .App.Config.Theme.CustomCSSFile }}

internal/glance/config.go

@@ -60,12 +60,22 @@ func configIsValid(config *Config) error {
 			return fmt.Errorf("Page %d has no title", i+1)
 		}
 
+		if config.Pages[i].Width != "" && (config.Pages[i].Width != "wide" && config.Pages[i].Width != "slim") {
+			return fmt.Errorf("Page %d: width can only be either wide or slim", i+1)
+		}
+
 		if len(config.Pages[i].Columns) == 0 {
 			return fmt.Errorf("Page %d has no columns", i+1)
 		}
 
-		if len(config.Pages[i].Columns) > 3 {
-			return fmt.Errorf("Page %d has more than 3 columns: %d", i+1, len(config.Pages[i].Columns))
+		if config.Pages[i].Width == "slim" {
+			if len(config.Pages[i].Columns) > 2 {
+				return fmt.Errorf("Page %d is slim and cannot have more than 2 columns", i+1)
+			}
+		} else {
+			if len(config.Pages[i].Columns) > 3 {
+				return fmt.Errorf("Page %d has more than 3 columns: %d", i+1, len(config.Pages[i].Columns))
+			}
 		}
 
 		columnSizesCount := make(map[string]int)

internal/glance/glance.go

@@ -60,6 +60,7 @@ type templateData struct {
 type Page struct {
 	Title            string   `yaml:"name"`
 	Slug             string   `yaml:"slug"`
+	Width            string   `yaml:"width"`
 	ShowMobileHeader bool     `yaml:"show-mobile-header"`
 	Columns          []Column `yaml:"columns"`
 	mu               sync.Mutex