fix: fixed serialization to LaTeX which was occasionally missing spaces

CHANGELOG.md

@@ -46,6 +46,8 @@
 
 ### Issues Resolved
 
+- The serialization of some expressions to LaTeX could result in some spaces
+  being omitted. For example, `\lnot p` would serialize as `\lnotp`.
 - **#2403** The virtual keyboard Keycap Variants panel was positioned incorrectly
   when the page used a RTL layout direction.
 - In the virtual keyboard, the background of the variant panel was sometimes

src/core/modes-math.ts

@@ -255,7 +255,7 @@ export class MathMode extends Mode {
 function emitBoldRun(run: Atom[], options: ToLatexOptions): string[] {
   return getPropertyRuns(run, 'bold').map((x) => {
     const weight = weightString(x[0]);
-    if (weight !== 'bold') return emitVariantRun(x, options).join('');
+    if (weight !== 'bold') return joinLatex(emitVariantRun(x, options));
 
     // If the parent is already bold, don't emit the bold command
     if (weightString(x[0].parent!) === 'bold')
@@ -266,7 +266,7 @@ function emitBoldRun(run: Atom[], options: ToLatexOptions): string[] {
     // (i.e. greek letters, operators, variants, etc...)
 
     // Get the content of the run
-    const value = x.map((x) => x.value ?? '').join('');
+    const value = joinLatex(x.map((x) => x.value ?? ''));
     if (/^[a-zA-Z0-9]+$/.test(value)) {
       return latexCommand('\\mathbf', joinLatex(emitVariantRun(x, options)));
     }