airframe-rx-html: Support implicit convertion to RxElement with import wvlet.airframe.rx.html.all.*

[xerial]

For rendering DOM elements, two wildcard import was necessary:

import wvlet.airframe.rx.html.*
import wvlet.airframe.rx.html.all.*

With this PR, only all.* import will be required

• And also closes airframe-rx-html: SVG title tag should not be an attribute #2994: Adding svg.title tag

[codecov]

Codecov Report

Merging #3008 (922ccc1) into master (70012e8) will increase coverage by 0.00%.
The diff coverage is 87.50%.

❗ Current head 922ccc1 differs from pull request most recent head 6810b8e. Consider uploading reports for the commit 6810b8e to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3008   +/-   ##
=======================================
  Coverage   82.83%   82.84%           
=======================================
  Files         348      349    +1     
  Lines       14619    14620    +1     
  Branches     2419     2373   -46     
=======================================
+ Hits        12110    12112    +2     
+ Misses       2509     2508    -1     

Impacted Files	Coverage Δ
...la/wvlet/airframe/rx/html/RxEmbeddingSupport.scala	87.09% <87.09%> (ø)
...rc/main/scala/wvlet/airframe/rx/html/package.scala	91.30% <87.50%> (+2.62%)	⬆️
...rc/main/scala/wvlet/airframe/rx/html/SvgTags.scala	100.00% <100.00%> (ø)

... and 1 file with indirect coverage changes

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 70012e8...6810b8e. Read the comment docs.