Resolve "As a user I want to be able submit a form about a specific landmark to add to the trail"

Closes #31 (closed)

Completed issue 31, successfully created a form for users who wish to add their landmarks to a local trail. Verification has been implemented on both the server and client-side to ensure only valid responses are received. I ensured that the narrator worked and that the form is intuitive to use. The form names have also been chosen as they are suitable for the required input at hand and allow the user a clear idea of what they are inputting and why.

As such, I believe that this issue is ready to be merged, thanks.

src/main/resources/templates/Landmarks/LandmarkForm.css

+main{
+    background: black;
+    color: wheat;
+}
+
+#landmarkSubmission{
+    color:white;
+    border-color: white;
+    align-content: center;
+}
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