Add prefix and manage url to the action needed reasons templates

src/registrar/templates/emails/action_needed_reasons/already_has_domains_subject.txt

@@ -1 +1 @@
-Update on your .gov request: {{ domain_request.requested_domain.name }}
+{{ prefix }}Update on your .gov request: {{ domain_request.requested_domain.name }}

src/registrar/templates/emails/action_needed_reasons/bad_name.txt

@@ -17,7 +17,7 @@ Domains should uniquely identify a government organization and be clear to the g
 
 
 ACTION NEEDED
-First, we need you to identify a new domain name that meets our naming requirements for your type of organization. Then, log in to the registrar and update the name in your domain request. <https://manage.get.gov/> Once you submit your updated request, we’ll resume the adjudication process.
+First, we need you to identify a new domain name that meets our naming requirements for your type of organization. Then, log in to the registrar and update the name in your domain request. <{{ manage_url }}> Once you submit your updated request, we’ll resume the adjudication process.
 
 If you have questions or want to discuss potential domain names, reply to this email.
 

src/registrar/templates/emails/action_needed_reasons/bad_name_subject.txt

@@ -1 +1 @@
-Update on your .gov request: {{ domain_request.requested_domain.name }}
+{{ prefix }}Update on your .gov request: {{ domain_request.requested_domain.name }}

src/registrar/templates/emails/action_needed_reasons/eligibility_unclear_subject.txt

@@ -1 +1 @@
-Update on your .gov request: {{ domain_request.requested_domain.name }}
+{{ prefix }}Update on your .gov request: {{ domain_request.requested_domain.name }}

src/registrar/templates/emails/action_needed_reasons/questionable_senior_official.txt

@@ -21,7 +21,7 @@ We expect a senior official to be someone in a role of significant, executive re
 ACTION NEEDED
 Reply to this email with a justification for naming {{ domain_request.senior_official.get_formatted_name }} as the senior official. If you have questions or comments, include those in your reply.
 
-Alternatively, you can log in to the registrar and enter a different senior official for this domain request. <https://manage.get.gov/> Once you submit your updated request, we’ll resume the adjudication process.
+Alternatively, you can log in to the registrar and enter a different senior official for this domain request. <{{ manage_url }}> Once you submit your updated request, we’ll resume the adjudication process.
 
 
 THANK YOU

src/registrar/templates/emails/action_needed_reasons/questionable_senior_official_subject.txt

@@ -1 +1 @@
-Update on your .gov request: {{ domain_request.requested_domain.name }}
+{{ prefix }}Update on your .gov request: {{ domain_request.requested_domain.name }}