fix(devtools): Does not render correctly when title is an object

[darkmice]

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What have you changed?

[codecov]

Codecov Report

Merging #3340 (124299a) into formily_next (b9e5f9a) will not change coverage.
The diff coverage is n/a.

@@              Coverage Diff              @@
##           formily_next    #3340   +/-   ##
=============================================
  Coverage         96.16%   96.16%           
=============================================
  Files               152      152           
  Lines              6573     6573           
  Branches           1777     1835   +58     
=============================================
  Hits               6321     6321           
+ Misses              252      223   -29     
- Partials              0       29   +29     

Impacted Files	Coverage Δ
packages/path/src/index.ts	65.25% <0.00%> (ø)
packages/path/src/parser.ts	92.42% <0.00%> (ø)
packages/path/src/shared.ts	50.87% <0.00%> (ø)
packages/vue/src/shared/h.ts	86.48% <0.00%> (ø)
packages/path/src/tokenizer.ts	91.74% <0.00%> (ø)
packages/core/src/models/Field.ts	99.06% <0.00%> (ø)
packages/reactive/src/externals.ts	90.58% <0.00%> (ø)
packages/reactive/src/internals.ts	95.12% <0.00%> (ø)

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