fix: address fullscreen and n-plus-one review notes

src/main.ts

@@ -1955,7 +1955,7 @@ function refreshLinuxVisibleOverlayAfterMpvFullscreenChange(): void {
   }
 
   mainWindow.hide();
-  mainWindow.show();
+  mainWindow.showInactive();
   ensureOverlayWindowLevel(mainWindow);
 }
 

src/token-merger.ts

@@ -394,6 +394,9 @@ export function markNPlusOneTargets(
     return [];
   }
 
+  const normalizedSourceText =
+    typeof sourceText === 'string' ? sourceText.replace(/\r?\n/g, ' ').trim() : undefined;
+
   const markedTokens = tokens.map((token) => ({
     ...token,
     isNPlusOneTarget: false,
@@ -431,7 +434,7 @@ export function markNPlusOneTargets(
   for (let i = 0; i < markedTokens.length; i++) {
     const token = markedTokens[i];
     if (!token) continue;
-    if (hasSentenceBoundaryInSourceGap(sourceText, previousTokenEnd, token.startPos)) {
+    if (hasSentenceBoundaryInSourceGap(normalizedSourceText, previousTokenEnd, token.startPos)) {
       markSentence(sentenceStart, i);
       sentenceStart = i;
     }

src/window-trackers/hyprland-tracker.ts

@@ -353,8 +353,12 @@ export class HyprlandWindowTracker extends BaseWindowTracker {
       return null;
     }
 
+    try {
       const output = execSync('hyprctl -j monitors', { encoding: 'utf-8' });
       return parseHyprctlMonitors(output);
+    } catch {
+      return null;
+    }
   }
 
   private getWindowCommandLine(pid: number): string | null {