Various spelling improvements (#3497)

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>
Co-authored-by: Sandy Tao <sandytao520@icloud.com>

packages/cli/src/ui/themes/shades-of-purple.ts

@@ -5,7 +5,7 @@
  */
 
 /**
- * Shades of Purple Theme — for Highlightjs.
+ * Shades of Purple Theme — for Highlight.js.
  * @author Ahmad Awais <https://twitter.com/mrahmadawais/>
  */
 import { type ColorsTheme, Theme } from './theme.js';

packages/cli/src/ui/themes/theme-manager.test.ts

@@ -85,7 +85,7 @@ describe('ThemeManager', () => {
     expect(themeManager.getTheme('MyCustomTheme')).toBeDefined();
   });
 
-  it('should fallback to default theme if active theme is invalid', () => {
+  it('should fall back to default theme if active theme is invalid', () => {
     (themeManager as unknown as { activeTheme: unknown }).activeTheme = {
       name: 'NonExistent',
       type: 'custom',

packages/cli/src/ui/themes/theme-manager.ts

@@ -117,7 +117,7 @@ class ThemeManager {
     if (process.env.NO_COLOR) {
       return NoColorTheme;
     }
-    // Ensure the active theme is always valid (fallback to default if not)
+    // Ensure the active theme is always valid (fall back to default if not)
     if (!this.activeTheme || !this.findThemeByName(this.activeTheme.name)) {
       this.activeTheme = DEFAULT_THEME;
     }

packages/cli/src/ui/themes/theme.ts

@@ -151,7 +151,7 @@ export class Theme {
           inkTheme[key] = resolvedColor;
         }
         // If color is not resolvable, it's omitted from the map,
-        // allowing fallback to the default foreground color.
+        // this enables falling back to the default foreground color.
       }
       // We currently only care about the 'color' property for Ink rendering.
       // Other properties like background, fontStyle, etc., are ignored.