Consider improving the wording for room timeline pagination

[bkil]

The wording on matrix-static for navigating room timeline was:

Load older messages
Show newer messages

I have just noticed the naming inconsistency. The wording on public-archive is:

Jump to previous activity in the room ⏩️
Jump to the next activity in the room ⏩️

The fast forward Unicode character is substituted with an SVG for some reason. The wording of next vs. previous is generally confusing, and it also made me wonder why the same arrow is used to depict complementary actions. Should one point up and the other down, or one to the left and the other to the right? In general, I'd probably use a wording such as

⏪️ Show earlier messages
Show newer messages ⏩️

[MadLittleMods]

👍 I agree that the language could be improved!

Not confident that any of proposed wording is materially better though. Might be a good issue for product to take a look at or ask some AI about some clear, concise better options.