Clear forced inline breaks when switching between renderers, when needed

[dpvc]

When a page has SVG rendering on by default when loaded, and inline breaks are enabled, then when we switch to CHTML output, all the inline breaks are forced to occur. The is due to the way the SVG output has to be broken into separate SVG nodes, so it had marked the nodes for forced breaks, and those marks aren't removed.

This refactors the old code to unmark the breaks if they were set before and we don't want breaks (i.e., the inline breaks menu setting has changed) or the force-break setting is changing (i.e., the render changed). Then we check if breaks are needed and make them again with the new settings. The unsetting and breaking are no longer one-or-the-other, and only the needed actions are taken.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 14 lines in your changes missing coverage. Please review.

Project coverage is 86.71%. Comparing base (4d1e195) to head (d55b576).
Report is 23 commits behind head on develop.

Files with missing lines	Patch %	Lines
ts/output/common.ts	0.00%	14 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1293      +/-   ##
===========================================
- Coverage    86.71%   86.71%   -0.01%     
===========================================
  Files          337      337              
  Lines        83979    83988       +9     
  Branches      4750     3124    -1626     
===========================================
  Hits         72826    72826              
- Misses       11130    11162      +32     
+ Partials        23        0      -23     

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[zorkow]

lgtm.

[zorkow]

lgtm.