Feat add auto import for CSS Modules file

[fyangstudio]

• Add className={} and styles completion items
• Add auto import for module style file

[codecov-commenter]

Codecov Report

Merging #961 (0daa708) into release/1.5.0 (b23bcd7) will not change coverage. The diff coverage is n/a.

@@              Coverage Diff               @@
##           release/1.5.0     #961   +/-   ##
==============================================
  Coverage          57.14%   57.14%           
==============================================
  Files                  1        1           
  Lines                 70       70           
  Branches              15       18    +3     
==============================================
  Hits                  40       40           
  Misses                30       30           

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