languages: Fix string override to match just `string_fragment` part of `template_string` (#33997)

Smit Barmase created 

Closes #33703

`template_string` consists of `template_substitution` and
`string_fragment` chunks. `template_substitution` should not be
considered a string.

```ts
const variable = `this is a string_fragment but ${this.is.template_substitution}`;
```

Release Notes:

- Fixed auto-complete not showing on typing `.` character in template
literal string in JavaScript and TypeScript files.

Change summary

crates/languages/src/javascript/overrides.scm | 7 +++----
crates/languages/src/tsx/overrides.scm        | 7 +++----
crates/languages/src/typescript/overrides.scm | 3 +++
3 files changed, 9 insertions(+), 8 deletions(-)

Detailed changes

crates/languages/src/tsx/overrides.scm 🔗 

@@ -1,9 +1,8 @@
 (comment) @comment.inclusive
 
-[
-  (string)
-  (template_string)
-] @string
+(string) @string
+
+(template_string (string_fragment) @string)
 
 (jsx_element) @element

crates/languages/src/typescript/overrides.scm 🔗 

@@ -1,6 +1,9 @@
 (comment) @comment.inclusive
+
 (string) @string
 
+(template_string (string_fragment) @string)
+
 (_ value: (call_expression
   function: (identifier) @function_name_before_type_arguments
   type_arguments: (type_arguments)))