feat(tiptap): add supersub

[seaerchin]

Problem

(yes i had to add that lame joke)
At present, nlb uses super/sub scripts to add anchor links. This PR adds a first pass of super/subscripts to our editor.

Closes [ISOM-793]

Solution

• add tiptap super/subscript packages
• add menu bar
• toggle using menubar

Videos

Screen.Recording.2024-03-18.at.5.59.26.PM.mov

Manual tests

• add some text onto the page
• select the text
• click teh superscript icon
• text should now be superscript
• reload the page
• changes should be persisted
• repeat the above but for subscript

[sehyunidaaa]

@seaerchin
Seems to be working well! Can help me check these two behaviours as well?

• Can you add a hyperlink to the superscript/subscripted text?
• Do the sup/sub options in toolbar have tooltips? If yes, are the tooltips properly formatted ("Subscript", "Superscript")?

[seaerchin]

@seaerchin Seems to be working well! Can help me check these two behaviours as well?

• Can you add a hyperlink to the superscript/subscripted text?
• Do the sup/sub options in toolbar have tooltips? If yes, are the tooltips properly formatted ("Subscript", "Superscript")?

yes to both!

[sehyunidaaa]

thanku lgtm~ @seaerchin