* Improve translink macro
Changes:
- Change styles to adapt colours to the current palette, instead of hard-coded white inside black box with grey borders.
- Simplify the design to a single div (inspired by the Community links on tiddlywiki.com), instead of two nested contrasting divs.
Comments:
- I found pre-border and pre-background to be the most consistently readable across the default palettes (better than relying on e.g. tiddler-border, tiddler-background, page-background, code-border, code-background). Cupertino Dark, Gruvbox Dark, Nord, Solar Flare, Spartan Day, Spartan Night, Spartan Day, and Twilight have same or very similar pre-border and pre-background colours, so if the macro is nested (translinking a tiddler that contains a translink), the inner frames are not distinguishable, but I think it's an acceptable edge case.
- Padding is defined separately for block and inline modes of the macro to make it appear consistent.
* Update translink macro
Change the `<h1>` styling so that it is only applied to the transcluded tiddler's title and not to any potential `<h1>` in its text.
* Update translink macro
Change the class-constructing filter so that the empty message is displayed with consistent padding in block mode.
* Update translink.tid
* Add styles for translink macro to vanilla/base.tid
Split `pre` element styling, to allow part of it be reused with `.tc-pre-border` (used by translink macro).
Add `.tc-big-bold` class under Other utility classes (used by translink macro).
* Update base.tid
Add `.tc-big-bold` class under Other utility classes (used by translink macro).
* Update translink.tid
Update `tc-pre-border` class name to match the one in vanilla/base.tid
* Update translink.tid
Simplify by always wrapping transclusion in `<p>` element (adjusts padding when inline mode or tiddler missing).
* Update translink.tid
Localise missing tiddler message (`$:/language/MissingTiddler/Hint`)
* Update vanilla/base.tid
- Modify class `tc-pre-background`, so that it can be applied to elements other than `pre`. The styling of `pre` remains unchanged, it is only split into two parts, for one part to be reused in the `tc-pre-background` class (used e.g. in translink macro).
- Add `tc-big-v-gap` and `tc-big-bold` in the *Other utility classes* section (used e.g. in translink macro).
* Update translink.tid
Improve styling to depend only on classes specified in vanilla/base.tid
* Update base.tid
Update class `tc-translink` and CSS selectors to make styling the translink macro easier
* Update translink.tid
Change the classes of elements, so that changing the style is possible by modifying the stylesheet only
* Update base.tid
Add selectors to support new inline mode in translink macro
* Update translink.tid
Change behaviour of the inline mode, now the whole macro is inline, not just the transcluded text.
* Update base.tid
Fix padding of tc-translink class to account for multiline inline content.
* Update base.tid
Remove pseudo-element parentheses from inline translink macro
* Update translink.tid
Add parentheses around inline macro
