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/.golangci.yml

@@ -0,0 +1,55 @@
+run:
+  tests: true
+  skip-dirs:
+    - _examples
+
+output:
+  print-issued-lines: false
+
+linters:
+  enable-all: true
+  disable:
+    - maligned
+    - megacheck
+    - lll
+    - gocyclo
+    - dupl
+    - gochecknoglobals
+    - funlen
+    - godox
+    - wsl
+    - gomnd
+    - gocognit
+
+linters-settings:
+  govet:
+    check-shadowing: true
+  gocyclo:
+    min-complexity: 10
+  dupl:
+    threshold: 100
+  goconst:
+    min-len: 8
+    min-occurrences: 3
+
+issues:
+  max-per-linter: 0
+  max-same: 0
+  exclude-use-default: false
+  exclude:
+    # Captured by errcheck.
+    - '^(G104|G204):'
+    # Very commonly not checked.
+    - 'Error return value of .(.*\.Help|.*\.MarkFlagRequired|(os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*printf?|os\.(Un)?Setenv). is not checked'
+    - 'exported method (.*\.MarshalJSON|.*\.UnmarshalJSON|.*\.EntityURN|.*\.GoString|.*\.Pos) should have comment or be unexported'
+    - 'composite literal uses unkeyed fields'
+    - 'declaration of "err" shadows declaration'
+    - 'should not use dot imports'
+    - 'Potential file inclusion via variable'
+    - 'should have comment or be unexported'
+    - 'comment on exported var .* should be of the form'
+    - 'at least one file in a package should have a package comment'
+    - 'string literal contains the Unicode'
+    - 'methods on the same type should have the same receiver name'
+    - '_TokenType_name should be _TokenTypeName'
+    - '`_TokenType_map` should be `_TokenTypeMap`'