Use glamour and termev to render/colorize content (#181)

Merge branch 'master' into use-glamour

select Glamour Theme based on BackgroundColor

Merge branch 'master' into use-glamour

Merge branch 'master' into use-glamour

update termev

update go.mod

label color colorate

use glamour for issue content

Vendor: Add glamour

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/181
Reviewed-by: techknowlogick <techknowlogick@gitea.io>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>

vendor/github.com/alecthomas/chroma/styles/arduino.go

@@ -0,0 +1,25 @@
+package styles
+
+import (
+	"github.com/alecthomas/chroma"
+)
+
+// Arduino style.
+var Arduino = Register(chroma.MustNewStyle("arduino", chroma.StyleEntries{
+	chroma.Error:           "#a61717",
+	chroma.Comment:         "#95a5a6",
+	chroma.CommentPreproc:  "#728E00",
+	chroma.Keyword:         "#728E00",
+	chroma.KeywordConstant: "#00979D",
+	chroma.KeywordPseudo:   "#00979D",
+	chroma.KeywordReserved: "#00979D",
+	chroma.KeywordType:     "#00979D",
+	chroma.Operator:        "#728E00",
+	chroma.Name:            "#434f54",
+	chroma.NameBuiltin:     "#728E00",
+	chroma.NameFunction:    "#D35400",
+	chroma.NameOther:       "#728E00",
+	chroma.LiteralNumber:   "#8A7B52",
+	chroma.LiteralString:   "#7F8C8D",
+	chroma.Background:      " bg:#ffffff",
+}))