Template string literals in Competition tabs

[coder13]

Is your feature request related to a problem? Please describe.

Delegates will often have the same or similar text used for lots of their competitions with slight tweaks such as needing to change the competitionId or date.

Describe the solution you'd like

I would like to be able to use string literals such as {competitionId} when editing the text such that when I view the tab, I get the ID of the competition. I would then use this (specifically {competitionId} in URLs for linking to websites like competitiongroups.com and more.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
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[FinnIckler]

We discussed this a bit in #9792 and I think it's a good idea, question is: do we implement this during saving or during rendering of the markdown

[gregorbg]

Definitely during rendering, otherwise it completely defeats the purpose of cloning frequently-used snippets from older competitions