Doc: Make the locator more visible in the other parts of the docs

Change-Id: Icdefa64f5874f14c6a9c6a24e4d73837c12b457f
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

doc/qtcreator/src/editors/creator-locator.qdoc

@@ -8,6 +8,9 @@
 
     \title Searching with the Locator
 
+    The locator is the fastest way to find a particular project, file, class, or
+    function, or almost anything else in your project.
+
     By default, you can find the locator in the bottom left of the \QC window.
     To open it as a centered popup, click \inlineimage icons/magnifier.png
     (\uicontrol Options) in it and select \uicontrol {Open as Centered Popup}.

doc/qtcreator/src/user-interface/creator-file-system-view.qdoc

@@ -11,6 +11,11 @@
     If you cannot see a file in the \l Projects view, switch to the
     \uicontrol {File System} view, which shows all the files in the file system.
 
+    \note Usually, \l{Searching with the Locator}{searching with the locator}
+    is the fastest way to find a particular project, file, class, or function,
+    or almost anything else in your project. Use the \e {file system (f)} filter
+    to open files from anywhere in the file system.
+
     \if defined(qtdesignstudio)
     The following image displays the \uicontrol {File System} view in the
     \uicontrol Design mode:

doc/qtcreator/src/user-interface/creator-projects-view.qdoc

@@ -18,6 +18,10 @@
     the build system structure of the project and lists all files that
     are part of the project.
 
+    \note Usually, \l{Searching with the Locator}{searching with the locator}
+    is the fastest way to find a particular project, file, class, or function,
+    or almost anything else in your project.
+
     \if defined(qtdesignstudio)
     The following image displays the \uicontrol Projects view in the
     \uicontrol Design mode:

doc/qtcreator/src/user-interface/creator-ui.qdoc

@@ -50,17 +50,20 @@
     \endif
 
     \if defined(qtcreator)
-    Use the \l{Selecting Modes}{mode selector} (1) to change to another \QC mode.
+    Do you want to perform a particular task, such as designing the UI,
+    writing code, or debugging the application? Select the appropriate mode in
+    the \l{Selecting Modes}{mode selector} (1).
 
-    Use the kit selector (2) to select the \l{glossary-buildandrun-kit}{kit} for
+    Are you ready to build the application for particular hardware or (5)
-    running (3), debugging (4), or building (5) the application. The task bar (7)
+    run (3) or debug (4) it on a device? Use the kit selector (2) to select
+    the appropriate \l{glossary-buildandrun-kit}{kit}. The task bar (7)
     displays output from these actions.
 
-    Use the \l{Searching with the Locator}{locator} (6) to browse through
+    Are you looking for a particular project, file, class, or function?
-    projects, files, classes, functions, documentation, and file systems.
+    Start typing its name in the \l{Searching with the Locator}{locator} (6).
 
-    For a quick tour of the user interface that takes you to the locations of
+    To see where the above controls are in the user interface, select
-    these controls, select \uicontrol Help > \uicontrol {UI Tour}.
+    \uicontrol Help > \uicontrol {UI Tour}.
 
     The following sections describe some \QC controls in more detail:
 

doc/qtcreator/src/user-interface/creator-views.qdoc

@@ -22,6 +22,10 @@
     {mode} you are working in. Only views that are relevant to a mode are
     available in it.
 
+    \note Usually, \l{Searching with the Locator}{searching with the locator}
+    is the fastest way to find a particular project, file, class, or function,
+    or almost anything else in your project.
+
     Manage projects and files in the following views:
 
     \list