feat!: add NodeData.encodedSource

[kesselb]

After nextcloud/server#40644 it's possible to delete, restore and favorite files with special characters like # but the displayed filenames are also encoded.

This PR adds a new property encodedSource to handle it nicer.

I'm aware we could also split the given source uri and encode only the path. Such an approach will fail on some obscure uri we didn't think of and therefore the most reliable way for me is to let the caller generate the encoded source.

[codecov]

Codecov Report

Merging #789 (b6c9b92) into master (ad16003) will increase coverage by 0.41%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #789      +/-   ##
==========================================
+ Coverage   77.69%   78.11%   +0.41%     
==========================================
  Files          17       17              
  Lines         417      425       +8     
  Branches      111      113       +2     
==========================================
+ Hits          324      332       +8     
  Misses         92       92              
  Partials        1        1              

Files	Coverage Δ
lib/dav/dav.ts	61.53% <ø> (ø)
lib/files/node.ts	100.00% <100.00%> (ø)
lib/files/nodeData.ts	100.00% <100.00%> (ø)