Add named slots to DougalProjectSettingsFileMatchingParameters.

Used to display error or information messages.

lib/www/client/source/src/components/project-settings/file-matching-parameters.vue

@@ -18,6 +18,7 @@
               A list of directories which are searched for matching files.
             </v-card-subtitle>
             <v-card-text>
+              <slot name="paths"></slot>
               <v-form>
                 <v-text-field v-for="(item, index) in paths" :key="index"
                   v-model="paths[index]"
@@ -61,6 +62,7 @@
               A list of <a href="https://en.wikipedia.org/wiki/Glob_(programming)" target="_blank">glob patterns</a> expanding to match the files of interest. Note that Linux is case-sensitive.
             </v-card-subtitle>
             <v-card-text>
+              <slot name="globs"></slot>
               <v-form>
                 <v-text-field v-for="(item, index) in globs" :key="index"
                   v-model="globs[index]"
@@ -98,6 +100,7 @@
               <b v-if="lineNameInfo">Note: Use the <a @click.stop="tab=3">line info</a> tab preferentially.</b>
             </v-card-subtitle>
             <v-card-text>
+              <slot name="pattern"></slot>
               <v-form>
                 <v-text-field
                   class="mb-5"
@@ -156,6 +159,7 @@
               Line information that will be extracted from file names
             </v-card-subtitle>
             <v-card-text>
+              <slot name="line-info"></slot>
               <v-form>
                 <v-text-field
                   label="Example file name"