fix: Make Postorius more usable without Javascript.
This makes the following changes:
- Make all the dropdown items always visible so they can be navigated to even when the JS is enabled and dropdown functionality is not working. This is probably not the ideal solution, but I don't currently want to add CSS only dropdown.
- Make the dropdown in the top (account nav) embedded inside the navbar when the dropdowns are disabled.
- Allow viewing raw held message content when JS is enabled by hyperlinking to the message content in new tab.
Closes #544 (closed)