feat(ConfigProvider): add icon-prefix prop

[chenjiahan]

No description provided.

[codecov-commenter]

Codecov Report

Merging #8986 (3503fbf) into dev (b5ea1cd) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##              dev    #8986   +/-   ##
=======================================
  Coverage   89.91%   89.92%           
=======================================
  Files         221      221           
  Lines        5503     5508    +5     
  Branches     1361     1360    -1     
=======================================
+ Hits         4948     4953    +5     
  Misses        322      322           
  Partials      233      233           

Impacted Files	Coverage Δ
src/config-provider/ConfigProvider.tsx	100.00% <100.00%> (ø)
src/icon/Icon.tsx	100.00% <100.00%> (ø)
src/utils/format/string.ts	100.00% <100.00%> (ø)

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