fix: tsconfig cwd differing from microbundle's cwd (#941)

* fix: 'tsconfig.json' search should start in the set cwd * docs: Adding changeset

Author: rschristian

.changeset/clever-chicken-end.md

@@ -0,0 +1,5 @@
+---
+'microbundle': patch
+---
+
+Ensures TS plugin will begin its search for a 'tsconfig.json' in the set cwd

src/index.js

@@ -522,6 +522,7 @@ function createConfig(options, entry, format, writeMeta) {
 },
 (useTypescript || emitDeclaration) &&
 typescript({
+cwd: options.cwd,
 typescript: require(resolveFrom.silent(
 options.cwd,
 'typescript',