give smileys intrinsic height. fixes #4436

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code style: operator spacing

coding style: control flow whitespaces

Improves our custom smileys

This affects the question, exclaim, deleteme and fixme emojis which are
not to be found in standed Unicode smiley sets

The styles now better match the Twitter Emoji styl

Improves our custom smileys

This affects the question, exclaim, deleteme and fixme emojis which are
not to be found in standed Unicode smiley sets

The styles now better match the Twitter Emoji styles and are also closer
to our previous styles.

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SVG based smileys

This patch replaces our old gif based smileys by SVG based ones from the
Twemoji project. This allows for scaling the emojis with the text
they're used in.

Remove obsolete attributes at <script> tag

Nowadays it is not necessary to specify "type" or "charset" attribute at <script> tag:

1. "type" attribute defaults to "application/javascript", so there

Remove obsolete attributes at <script> tag

Nowadays it is not necessary to specify "type" or "charset" attribute at <script> tag:

1. "type" attribute defaults to "application/javascript", so there is no need to specify that. The recent value "text/javascript" is obsolete in favor of the default "application/javascript", as stated e.g. here: https://www.iana.org/assignments/media-types/media-types.xhtml#text

2. "charset" attribute of the <script> tag defaults to encoding be the same as the encoding of the script element's node document. As DokuWiki's default encoding is "utf-8", there is no need to specify this encoding in external resources. See: https://html.spec.whatwg.org/multipage/scripting.html#the-script-element

Manual merging, closes #2921.

Co-Authored-By: petrkajzar <58340153+petrkajzar@users.noreply.github.com>

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