Integrate mention parsing

[artcodespace]

This PR integrates the new parsing functions in the following ways:

• adds an is_valid_uri helper function to the matrix_mentions crate
• updates the MentionNode type quite a bit to accommodate the parsing changes
• updates the output as html/md of the MentionNode to address eg using mx_id inside room mentions and in markdown output
• enables us to detect when a link is a mention (for editing messages etc)
• updates tests where required
• enables the matrix mention parsing to handle non matrix permalinks

This will close the outstanding points on #679 , namely

replace the inner text of a room mention link with the mxId (think this is what the spec dictates, should this be the same for users?)
Markdown output (to attach to body)

replace mention link representations with just the mxId, prefixed with @ or # as appropriate

Closes #679

[codecov-commenter]

Codecov Report

Patch coverage: 68.32% and project coverage change: +1.20 🎉

Comparison is base (4712ec2) 88.56% compared to head (4028efc) 89.76%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #719      +/-   ##
============================================
+ Coverage     88.56%   89.76%   +1.20%     
============================================
  Files           148       83      -65     
  Lines         17228    14617    -2611     
  Branches        789        0     -789     
============================================
- Hits          15258    13121    -2137     
+ Misses         1780     1496     -284     
+ Partials        190        0     -190     

Flag	Coverage Δ
uitests	?
uitests-android	?
uitests-ios	?
unittests	89.76% <68.32%> (+1.50%)	⬆️
unittests-android	?
unittests-ios	?
unittests-rust	89.76% <68.32%> (-0.44%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
bindings/wysiwyg-ffi/src/ffi_composer_model.rs	27.46% <0.00%> (-3.62%)	⬇️
bindings/wysiwyg-wasm/src/lib.rs	19.48% <0.00%> (-0.62%)	⬇️
crates/matrix_mentions/src/lib.rs	100.00% <ø> (ø)
crates/wysiwyg/src/composer_model/mentions.rs	79.41% <78.84%> (-19.05%)	⬇️
crates/wysiwyg/src/dom/parser/parse.rs	97.90% <90.90%> (-0.17%)	⬇️
crates/wysiwyg/src/dom/nodes/mention_node.rs	99.34% <97.87%> (-0.66%)	⬇️
crates/matrix_mentions/src/mention.rs	99.23% <100.00%> (+0.62%)	⬆️
crates/wysiwyg/src/dom/nodes/dom_node.rs	88.71% <100.00%> (-0.05%)	⬇️

... and 65 files with indirect coverage changes

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[aringenbach]

Looks good to me

What is our plan for supporting custom permalink URls ?

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

0.0% Coverage
0.0% Duplication