refactor: display project specific styling in annotation panel

Expected:

• Navigate to the following gfl url: https://dev1.gfl.sub.uni-goettingen.de/id/Z_1823-04-24_k
• Change to Edeirtor Text which have annotations - treflichen sic!
• the text inside should be displayed in italic style as expected.

To Test:

• Please pull the branch issue/#348-annotation-style in local.

• If GFL app is running, than use this entrypoint http://127.0.0.1:1745/tido/gfl/Z_1823-04-24_k/manifest.json as run the app.

• Navigate to the Edeirtor text which contains annotations and the expected letters should be displayed in italic.

or

• Use entry point: https://ahikar-dev.sub.uni-goettingen.de/api/textapi/ahikar/arabic-karshuni/collection.json
• In project folder naviagate to urls.vue component.
• change line 27 to <span v-else v-html="test" /> and and the following inside computed (line 43)

test() { return 'treflichen <i>sic</i>!'; },

It's the same string value that we get in annotation of GFL and run the app. The _sic_ should be displayed in Italic font.