Don't link the 'PR' label in lightweight comments

The title is already linked to the PR, so linking the 'PR' label to the
same URL was redundant. Keep 'PR' as plain text and link only the title:

  PR [**"Fix login"**](url) opened by user

Author: seanogdev

src/teamwork.sh

@@ -146,7 +146,7 @@ teamwork::pull_request_opened() {
   IFS=" " read -r -a pr_stats_array <<< "$pr_stats"
 
   if [ "$LIGHTWEIGHT_COMMENT" == "true" ]; then
-    teamwork::add_comment "[PR]($pr_url) [**\"$pr_title\"**]($pr_url) opened by $user"
+    teamwork::add_comment "PR [**\"$pr_title\"**]($pr_url) opened by $user"
   else
     teamwork::add_comment "
 **$user** opened a PR: **$pr_title**
@@ -176,7 +176,7 @@ teamwork::pull_request_closed() {
 
   if [ "$pr_merged" == "true" ]; then
     if [ "$LIGHTWEIGHT_COMMENT" == "true" ]; then
-      teamwork::add_comment "[PR]($pr_url) [**\"$pr_title\"**]($pr_url) merged by $user"
+      teamwork::add_comment "PR [**\"$pr_title\"**]($pr_url) merged by $user"
     else
       teamwork::add_comment "
 **$user** merged a PR: **$pr_title**
@@ -189,7 +189,7 @@ teamwork::pull_request_closed() {
     teamwork::move_task_to_column "$BOARD_COLUMN_MERGED"
   else
     if [ "$LIGHTWEIGHT_COMMENT" == "true" ]; then
-      teamwork::add_comment "[PR]($pr_url) [**\"$pr_title\"**]($pr_url) closed without merging by $user"
+      teamwork::add_comment "PR [**\"$pr_title\"**]($pr_url) closed without merging by $user"
     else
       teamwork::add_comment "
 **$user** closed a PR without merging: **$pr_title**
@@ -212,7 +212,7 @@ teamwork::pull_request_review_submitted() {
   # Only add a message if the PR has been approved
   if [ "$review_state" == "approved" ]; then
     if [ "$LIGHTWEIGHT_COMMENT" == "true" ]; then
-      teamwork::add_comment "[PR]($pr_url) [**\"$pr_title\"**]($pr_url) approved by $user"
+      teamwork::add_comment "PR [**\"$pr_title\"**]($pr_url) approved by $user"
     else
       teamwork::add_comment "
 **$user** submitted a review to the PR: **$pr_title**