feat(import): trim .mdx extension from import

src/services/import/zip.spec.ts

@@ -35,6 +35,7 @@ describe("processNoteContent", () => {
                 try {
                     expect(importedNote.mime).toBe("text/mdx");
                     expect(importedNote.type).toBe("text");
+                    expect(importedNote.title).toBe("Text Note");
                 } catch (e) {
                     reject(e);
                 }

src/services/utils.ts

@@ -173,6 +173,7 @@ export function removeTextFileExtension(filePath: string) {
 
     switch (extension) {
         case ".md":
+        case ".mdx":
         case ".markdown":
         case ".html":
         case ".htm":