UX: clean up some label and form inconsistencies, reduce excess bolding (#25701)

app/assets/javascripts/admin/addon/components/watched-word-form.hbs

@@ -66,7 +66,7 @@
   <label for="watched-case-sensitivity">{{i18n
       "admin.watched_words.form.case_sensitivity_label"
     }}</label>
-  <label class="case-sensitivity-checkbox">
+  <label class="case-sensitivity-checkbox checkbox-label">
     <Input
       @type="checkbox"
       @checked={{this.isCaseSensitive}}

app/assets/javascripts/admin/addon/templates/admin-badges/show.hbs

@@ -236,7 +236,7 @@
       </div>
 
       <div>
-        <label>
+        <label class="checkbox-label">
           <Input
             @type="checkbox"
             @checked={{this.buffered.multiple_grant}}
@@ -247,7 +247,7 @@
       </div>
 
       <div>
-        <label>
+        <label class="checkbox-label">
           <Input
             @type="checkbox"
             @checked={{this.buffered.listable}}
@@ -258,7 +258,7 @@
       </div>
 
       <div>
-        <label>
+        <label class="checkbox-label">
           <Input
             @type="checkbox"
             @checked={{this.buffered.show_posts}}

app/assets/javascripts/admin/addon/templates/site-text-index.hbs

@@ -32,7 +32,7 @@
       />
     </div>
 
-    <label>
+    <label class="checkbox-label">
       <input
         id="toggle-overridden"
         type="checkbox"
@@ -42,7 +42,7 @@
       {{i18n "admin.site_text.show_overriden"}}
     </label>
 
-    <label>
+    <label class="checkbox-label">
       <input
         id="toggle-outdated"
         type="checkbox"