fix(twoslash): completion on string quotes and literals (#99)

Co-authored-by: Anthony Fu <anthonyfu117@hotmail.com>

Author: jxom

packages/shikiji-twoslash/src/renderer-rich.ts

@@ -204,7 +204,6 @@ export function rendererRich(options: RendererRichOptions = {}): TwoslashRendere
                 class: ['twoslash-completion-list', classExtra].filter(Boolean).join(' '),
               },
               children: query.completions!
-                .filter(i => i.name.startsWith(query.completionsPrefix || '____'))
                 .map(i => ({
                   type: 'element',
                   tagName: 'li',
@@ -236,7 +235,9 @@ export function rendererRich(options: RendererRichOptions = {}): TwoslashRendere
                           children: [
                             {
                               type: 'text',
-                              value: query.completionsPrefix || '',
+                              value: i.name.startsWith(query.completionsPrefix)
+                                ? query.completionsPrefix
+                                : '',
                             },
                           ],
                         },
@@ -247,7 +248,9 @@ export function rendererRich(options: RendererRichOptions = {}): TwoslashRendere
                           children: [
                             {
                               type: 'text',
-                              value: i.name.slice(query.completionsPrefix?.length || 0),
+                              value: i.name.startsWith(query.completionsPrefix)
+                                ? i.name.slice(query.completionsPrefix.length || 0)
+                                : i.name,
                             },
                           ],
                         },

packages/shikiji-twoslash/test/fixtures/completion-end.ts

@@ -1,3 +1,26 @@
 // @noErrors
 console.e
 //       ^|
+
+
+const a: { test: 'foo' | 'bar' | 'baz' } = {
+  test: 'foo'
+}
+a.t
+// ^|
+
+
+a.test === '
+//          ^|
+
+
+a.test === 'b
+//           ^|
+
+
+a.test === 'bar'
+//           ^|
+
+
+a.test === 'bar'
+//          ^|